for the pairs below put each question in slope intercept form and whether the graphs of the line will be identical, parallel, or intersecting, Also determine how many solutions the system of equations will have
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Both equations are now y = 3x + 2. So they are identical, and therefore have infinite solutions since solution means how many times do these lines meet/overlap.
4: rewrite left-right and the equations are now:
y = -x
y = -x -2
Same slope but different intercept (b value), so they are parallel and NEVER meet (NO SOLUTIONS)
5. Rearrange:
y = -x + 4
y = x + 4
So they have different SLOPES in this example (m value). This means they are not parallel or identical, so they can only cross once (one solution)
6: rearrange both
y = 3x - 1
y = 3x + 1
Same slope (m=3), different intercepts (b= 1 and -1). Same slope means parallel, different b means different intercepts so they are NOT identical. Since parallel lines can not cross, there are no solutions
7: y = 2x + 4
y = 2x - 4
Same slope (m=2), different b values (y-intercepts are 4 and -4), so parallel but not identical, no solution
Related Questions
giving brainliest Here are the coordinates of rectangle PLAY: (-11,20), (-11,-3), (-1,20), (-1,-3). Find the perimeter of this rectangle. See if you can figure out its side lengths without plotting the points.
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Answer:
perimeter equals 66
sides: 23,23,10 10
what is 8.154 to 1 decimal place?
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The main point is that you want to round 8.154 to two digits or places after the decimal point. Thus, we want to eliminate the last digit in 8.154. To eliminate the last digit in 8.154, we use the following Two Decimal Places Rules to get the answer:
Two Decimal Places Rule #1: If the last digit in 8.154 is less than 5, then remove the last digit.
Two Decimal Places Rule #2: If the last digit in 8.154 is 5 or more and the second to the last digit in 8.154 is less than 9, then remove the last digit and add 1 to the second to the last digit.
Hello someone please help ASAP!!
Answers
Answer:
B
Step-by-step explanation:
A rational function range or possible answer cant be zero since on a rational function we dont want what we call vertical and horizontal asymptote are when y=0 or when x=0 so it can be any real number except 0.
I want to know if anyone can help with a math textbook. It is page 302, evens only. Skip word problems. Show work if you can, if you can't, then it's alright.
Answers
Step-by-step explanation:
Hopefully I'm right,but what you do is add the ones with variables together so
Question 15
3a + 2 + 3a + 7so 3a+3a= 6a and 7+2=9
so you have to add the ones that are similar but never add
3a+7 because they are not the same37. 5x-2y
38. -3a+2b
7/12
Which expression is equivalent to this fraction?
Answers
Answer:
12/7
Step-by-step explanation:
yes ! cd
Can somebody plz help answer these correclty (only if done this before) like show the answer /how I’m suppose to write it thx :3
WILL MARK BRAINLIEST WHOEVER ANSWERS THESE FIRST :DDD!!!
Answers
Answer:
1) 3x = 39 ; x = 39/3 = 13
2) x + 7 = 15 ; x = 15-7 = 8
3) 6x = 18 ; x = 18/6 = 3
4) x-4 = 11 ; x = 11 + 4 = 15
5) 1/7 x = 3 ; x = 3 *7 = 21
6) 13+x = 21 ; x = 21 - 13 = 8
I hope im right!!!
The vertex of the graph of g(x) = 3|x| + 4 is
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how would you factor 12b^4+3b^2
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Answer:
3b²(4b²+1)
Step-by-step explanation:
You can factor out a 3b²
3b²(4b²+1)
Answer:
Hey friend, need some help if you factor 3b^2 out of 12b^4+3b^2, in other words, 3b^2 (4b^2 + 1)
Show your work:
3b^2 (3b^2 / 12b^4) + (3b^2 / 3b^2)
PLZ give 5 stars, heart, and brainlyest
Please answer the correctly in the picture below 8TH GRADE MATHENMATICS?!
Answers
Answer:
B 3.5
Step-by-step explanation:
Hope it Helps!
Hope it helps my freind
What is the slope of the line whose equation is -2y = -3x + 5?
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Answer:
[tex]m = \frac{3}{2}[/tex]
Step-by-step explanation:
Use the slope-intercept form y = mx + b to find the slope m.
In this way, we can conclude that we can write it in slope-intercept form, y = mx + b:
[tex]y = \frac{3}{2} x - \frac{5}{2}[/tex]
Your correct answer would be:
[tex]y = \frac{3}{2} x - \frac{5}{2}[/tex]
Have a marvelous day.
which quadrilateral makes this statement true? Quadrilateral ABCD
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Answer:
A.
Step-by-step explanation:
Yesterday, between noon and midnight, the temperature dropped by 25.8°F. If the
temperature was -13.4°F at midnight, what was it at noon?
Answers
15.1 f
Step-by-step explanation:
-13.4+25.8= 15.1 F
The vertices of parallelogram DEFG are E(-1,4) F(5,6) and G (8,0). Find the coordinates of D
Answers
Answer:
The coordinates of D are (2,-2)
Step-by-step explanation:
The coordinates of point D are (2,-2)
The coordinates of the parallelogram are given as:
E(-1,4), F(5,6) and G (8,0)
For the coordinates to represent a parallelogram, the following must be true
[tex]x_D - x_E = x_G - x_F[/tex]
[tex]y_D - y_E = y_G - y_F[/tex]
So, the equations become
[tex]x_D -(-1) =8-5[/tex] and
[tex]y_D -4 =0-6[/tex]
Solve for x and y in the above equations
[tex]x_D -(-1) =8-5[/tex]
[tex]x_D +1 = 3[/tex]
[tex]x_D = 3-1[/tex]
[tex]x_D = 2[/tex]
[tex]y_D -4 =0-6[/tex]
[tex]y_D - 4 = -6[/tex]
[tex]y_D = 4-6[/tex]
[tex]y_D =-2[/tex]
Hence, the coordinates of point D are (2,-2)
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Keelin’s hourly rate went from $9.50 per hour to $10.26 per hour. What is the percent increase?
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Answer:
8%
Step-by-step explanation:
Can someone help me with this please
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What is 52% of 25? plzz helppp
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Answer: its 13
Step-by- 52 percent *25 =
(52:100)*25 =
(52*25):100 =
1300:100 = 13
step explanation:
Answer:13
Step-by-step explanation:
25x0.52
MANUFACTURING. The number of cars built varies
directly as the number of hours the production line
operates. What is the ratio of cars built to hours of
production? At this rate, how many cars can they
build in 5 hours?
Answers
Answer:
60 cars per hour
Step-by-step explanation:
Equation
Number of Solutions
6(2.1 + 1) - 2 = 12.1 + 4
How many solutions does it have?
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Rename 2/3 and 4/5 so they have common denominators.
Answers
Answer:
2/3 multiply by 5 to get 10/15
4/5 mulitply by 3 to get 12/15
Step-by-step explanation:
Answer:
i mean wouldn't it be more like 2,3,4 2 , 3 , 4 is 2⋅2⋅3=12 2 ⋅ 2 ⋅ 3 = 12 ..
Step-by-step explanation:
Answer fast!!!!!!!!!!!!!!
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Please help! Im failing math Rn! Please help!
Answers
Answer:
rickrolled.
Step-by-step explanation:
¯\_(ツ)_/¯
you won't learn by asking others. do it yourself.
Answer:
K
Step-by-step explanation:
Find each missing angle
Please
Answers
Answer:
m<1=61
m<2=40
m<3=60
m<4=80
m<5=100
Step-by-step explanation:
180/3=60
180/9=20
20x2=40
20x4=80
20x3=60
59+60=119
180-119=61
180-80=100
Another submarine's descent can be represented as `y=-240x`, where u is the elevation and x is time in hours. How long will it take this submarine to make the descent (2,100 feet below the surface)?
Answers
Answer:
The time it will take is 8hours 45mins.
Step-by-step explanation:
Since y = –240x represents a submarine descent. We are looking for how long, that is the time, it will take for the submarine to make a descent of 2100. We know that y is the elevation, if it is descending it will be in the negative direction, making it -ve.
A descent of 2100 means y = –2100. Hence,
–2100 = –240x
x = –2100/–240 = 8.75hours = 8hours 45minutes. (0.75hours = 3/4hours = 3/4 x 60mins = 45mins).
A student has heard that spinning pennies on a table, rather than flipping them in the air, results in tails side up 65% of the time. If this is true, what is the probability that a student who spins 4 pennies will have them all land tails side up? 0.0150 0.1785 0.8215 0.9850
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so I believe it is C 0.8215
The probability is 0.1785
What is probability?The study of how likely certain events are to occur is known as probability. In its simplest form, it is concerned with the fall of a game's cards or the roll of a dice. However, probability is also essential to life and science as a whole. Probability is used, for example, in weather forecasting and figuring out how much your insurance premiums will cost.
Given probability of tail by spinning a coin is 65% = 0.65
p(t) = 0.65 and p(h) = 0.35
where h= head and t= tail
coin spins 4 time
p(t) for first time = 0.65
p(t) for second time = 0.65 x 0.65 =0.4225
p(t) for third time = 0.65 x0.65 x 0.65 = 0.274
p(t) for fourth time = 0.65 x 0.65 x0.65 x 0.65 = 0.178
Hence probability that a student who spins 4 pennies will have them all land tails is 0.178
Learn more about probability;
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What is the product ([tex](7\sqrt{8} +3\sqrt{12} )(7\sqrt{8} -3\sqrt{12})[/tex]?
Answers
What’s a sentence that uses the word deficit? I’m having trouble thinking of some.
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Answer:
We will reduce the federal budget deficit.
Step-by-step explanation:
Help me please I will give you brainlist!
Answers
Answer:
2x
Step-by-step explanation:
2x has a value of 4 because x = 0 and y = 4 so the answer would be 2x
114.3 is what percent of 288? Round to the nearest hundredth. Please don’t get this wrong.
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Answer:
39.69%
Step-by-step explanation:
Hope this helps!!
What is the result of adding these two equations?
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Answer:
-18y-1
Step-by-step explanation:
algebra
ILL GIVE BRAINLIESAT FOR FIRST ANSWER!
Divide
3÷1/12
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Step-by-step explanation:
is 36 hello my name is santiago i am fron Colombia
