The points (-4,2) and (4,r) lie on a line with slope -1. Find the missing cooridnate r

Answers

Answer 1

r = -6

Step-by-step explanation:

The slope of a line is defined as

[tex]m = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]

Let [tex]P_1(-4, 2)[/tex] and [tex]P_2(4, r)[/tex]. Since m = -1, we can write

[tex]-1 = \dfrac{r - 2}{4 - (-4)} \Rightarrow -1 = \dfrac{r - 2}{8}[/tex]

or

[tex]r - 2 = -8 \Rightarrow r = -6[/tex]


Related Questions


In the given figure what is the measure of arc BC

Answers

Answer:

48°

Step-by-step explanation:

Both angles A and D intercept same arc BC, hence congruent:

7x - 4 = 2x + 167x - 2x = 16 + 45x = 20x = 4

Arc measure is twice the measure of inscribed angle:

mBC = 2(7*4 - 4) = 48

Please help me please help me help please help me please

Answers

Answer:

Slope = 3/1

Step-by-step explanation:

Slope equals y/x

For every 2 units of increase for the x value, there is an increase of 6 in y value

y/x = 6/2

6/2 = 3/1

How do I solve 3 - 4.5 =

Answers

Answer:

-1.5

Step-by-step explanation:

3.0 - 4.5 is the same as 3.0 + (-4.5)

in this instance you subtract 3.0 from 4.5 and keep the sign of the larger number, which is 4.5 (you disregard the negative sign)

Donovan bought 5 1/2 kilograms of flour for $8.25. How much does it cost to buy 1 kilogram of flour?

Answers

Answer: Donovan paid less than $1.25 per kilogram of flour

Donovan paid less than $1.25 per kilogram of flour.

left. \begin{array} { l } { z \geq 18250 s } \\ { \text { T

Answers

kya karna hai isme

what we have to do in this

Find the area of the shape below

Answers

Answer:

Total Area = 235cm^2

Step-by-step explanation:

Step 1 ) we have our lengths 11 and 20 so we need to separate the into 2 shapes  Step 2)   Label and draw new shape 20-11 = 9  to show (Shape square  1) = measuring 9 *9 and   another  (Shape Rectangle 2) = 11* 14  Step 3) Show how you do the multiplication of Square shape 9* 9 = 81cm^2  and Area Rectangle 11 * 14 = 154 cm^2   Total Area = 81+154 = 235cm^2    You can if you like in table multiplication show 11*14 by adding a zero underneath the 14 = 140 +14 = 154 then add and show +81 = 235cm^2 It is always easier to retain a shape if subtracting to get a 2nd shape this way it saves time with subtraction and in my example only needed to subtract 20-11 = 9 then 9*9 = 81cm^2 to retain the 14 *11 = 154cm^2 area for the rectangle

Answer:

Step-by-step explanation

full rectangle area (see figure) - small rectangle area

14 * 20 - [(14 - 9) *(20 - 11)] =

280 - (5 * 9) =

280 - 45 =

235 cm²

10 +4m when m = -2
i really need help on this lol

Answers

10 + (4 x -2)
=2
10 + -8 = 2

pls solve this thanks ​

Answers

The answer for the green box is - 2p=18

Need help with this:/

Answers

9514 1404 393

Answer:

  y = -2x +2

Step-by-step explanation:

The slope is the y-change divided by the x-change:

  m = (y2 -y1)/(x2 -x1)

  m = (0 -2)/(1 -0) = -2

The y-intercept is the y-value when x=0: b = 2.

The slope-intercept equation is ...

  y = mx +b

  y = -2x +2

Please help asap I’ll give you 20 points

Answers

Answer:

first one is left second one is right

Answer:

What is that on?

it is blury

A large serving of soup from a take-out restaurant is 4/5 liter. The restaurant has 3 liters of soup. The diagram models the number of servings of soup.

How many servings of soup does the restaurant have?

Answers

Answer:

The answer is 2 and 2/5 i hope this can help.

Step-by-step explanation:

Solve the following inequality

Answers

I think it’s the last one x <= -4

find difference

54.59- 26.61

A. 81.20
B. 38.98
C. 32.18
D. 27. 98

Answers

Answer:

D

Step-by-step explanation:

Answer:

D) 27.98

Step-by-step explanation:

All you have to do is subtract, have a nice day <3

Given 3 + 7 + 11 + 15 + ... find S20

Answers

=4n - 1
Since the sequence is add 4 and 3-4 = -1

20 x 4n = 80-1 = 79

Salina wants to buy a dress that sells for $55.00. If the sales tax is 8%, exactly how much will the dress costs?

Answers

Answer:

$44

Step-by-step explanation:

it's math

Answer:

$59.4

Step-by-step explanation:

Turn the percentage into a decimal.

8% = 0.08

Multiply.

55 * 0.08 = 4.4

Add.

59.4

Best of Luck!

Round 16.4829 to the nearest hundredth

Answers

Answer:

16.48

Step-by-step explanation:

The round off of 16.4829 to the nearest hundredth is 16.48.

What is Rounding off?

Although the term "rounding" is a general one, we typically use the terms "round up" or "round down" to indicate whether the number has gone up or down after being rounded. The supplied number is said to be rounded up when the rounded number is increased, and it is said to be rounded down when the rounded number is dropped.

Given:

16.4829

You rounded to the nearest hundredths place.

The 8 in the hundredths place rounds down to 8, or stays the same,

because the digit to the right in the thousandths place is 2.

and, When the digit to the right is less than 5 we round toward 0.

So, 16.4829 was rounded down toward zero to 16.48.

Learn more about round off here:

https://brainly.com/question/13391706

#SPJ2

Any hot topic online promo codes???​

Answers

try YAY50, brainliest?

what is the slope of the line passing through the points (2,5) and (0,-4)?

Answers

Answer:

9/2

Step-by-step explanation:

shen works mowing lawns and babysitting. he earns $9.40 an hour for mowing and $7.80 an hour for babysitting. how much will he earn for 4 hours of mowing and 6 for babysitting?

Answers

Answer:

$84.40

Step-by-step explanation:

mowing: $9.40/hour

babysitting: $7.80/hour

4 hours mowing + 6 hours babysitting =

= 4 × $9.40 + 6 × $7.80

= $37.6 + $46.8

= $84.40

Answer:

$84.40

Step-by-step explanation:

$9.40 · 4 + $7.80 · 6 = ?

9.4 · 4 = 37.60

7.8 · 6 = 46.80

37.60 + 46.80 = $84.4

I hope this helps!!

2 pts
Sammy wants to buy a new stereo priced at $439. He enters into an agreement to pay
$22 a month for 24 months. How much will the finance charge be for this purchase?
State your answer in terms of dollars rounded to the nearest cent (hundredth).

Answers

Answer:

$308

Step-by-step explanation:

I am not sure if this is correct. But try it and let me know if it was

Which ratio is equivalent to 5:9? with a twist ( only those options)

Answers

[tex]\huge\bold\green{Option\ :-\ D}[/tex]

Divide the option with 4 so that you can get the equivalent ratio to 5:9 .

write and equation on the line that passed through (0,-1) and is perpendicular to the line y =1/9x+2

Answers

Answer:

y=-9x-1

Step-by-step explanation:

since it is perpendicular, the slope must be the opposite reciprocal (-9x) and now we plug the coordinates in, -1=0+b, b is -1

Answer:

y=-9x-1

Step-by-step explanation:

Find the equation of a parabola in vertex form with given vertex and point.
Vertex (0,1) and passing through (-1,0)

Answers

keeping in mind that we could have a horizontally opening parabola or a vertically opening one using those values, let's use the vertical parabola type for the equation

[tex]~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(0,1)}\\\\ \stackrel{"a"~is~negative}{o pens~\cap}\qquad \stackrel{"a"~is~positive}{o pens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill[/tex]

[tex]y=a(x-0)^2+1\implies y=ax^2+1\qquad \textit{we also know that when} \begin{cases} x = -1\\ y = 0 \end{cases} \\\\\\ 0 = a(-1)^2+1\implies 0=a+1\implies \boxed{-1=a} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill y=-x^2+1\implies \stackrel{\textit{vertex form}}{y = -(x-0)^2+1}~\hfill[/tex]

Compare your response to the sample response above. What did you include in your explanation?
a reference to the horizontal-line test

a statement that the function is one-to-one
the conclusion that the inverse is a function

Answers

Answer:

mention the square root property?

Step-by-step explanation:

there are a total of 45 bikes. if the ratio of blue bikes to black bikes is 4 to 5, how many of the bikes are blue?

Answers

Answer:

20

Step-by-step explanation:

4 + 5 = 9

45 / 9 = 5

4 * 5 = 20

hope this helps

What does 6523 ÷ 65 equal?

Answers

100.3538461538462 is the answer

Answer:

~100.35385

Step-by-step explanation:

You just gotta take the time to do the long division. Alternate forms could be 100 23/65

Vinnie is searching online for airline tickets. Two weeks​ ago, the cost to fly from Hartford to Denver was ​$220. Now the cost is ​$305. What is the percent​ increase? What would be the percent increase if the airline charges an additional​ $50 baggage fee with the new ticket​ price?

Answers

Answer: 58

Step-by-step explanation:

Answer:

Question 1.  38.6 %   2.  61.4%

Step-by-step explanation:

(New Cost - Old Cost) ÷ old Cost × 100

    (305 - 220) ÷ 220 x 100

    =   85/220 x 100

    = 38.6 %

2.  New Cost 305 + 50 = $355    

     

(Now new cost - old cost) ÷ old cost ×  100

    (355 - 220)  ÷ 220 × 100  

    =  135/220 × 100

        61.4%  

guys help me with this question

Answers

Blank 1: 7

Blank 2: 3

Blank 3: 2

Blank 4: 2

Describe a way to obtain the same image without using rotations. (Can’t use stuff like 180°)

Answers

Answer:

Step-by-step explanation:

Reflection over x-axis then reflection over y-axis

1 Probably: a) between $20,000 and $40,000

Answers

Answer:

there is not enough info to answer the question

Step-by-step explanation:

can you repost it?

There is not enough information to answer this
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