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2 years ago

8

How can you tell whether two graph functions represent inverse functions or not?

1 answer:

Juliette [100K]2 years ago

5 0

Answer:

If is not one to one is not inverse (no inverse)

Step-by-step explanation:

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5. Mis the midpoint of CD. C has coordinates (-1,-1) and

lana66690 [7]

Answer/Step-by-step Explanation:

4. Midpoint (M) of AB, for A(-2, -3) and B(1, 2) is given as:

$M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})$

Let $A(-2, -3) = (x_1, y_1)$

$B(1, 2) = (x_2, y_2)$

Thus:

$M(\frac{-2 + 1}{2}, \frac{-3 + 2}{2})$

$M(\frac{-1}{2}, \frac{-1}{2})$

5. Given M(3, 5) as midpoint of CD, and C(-1, -1),

let $C(-1, -1) = (x_2, y_2)$

$D(?, ?) = (x_1, y_1)$

$M(3, 5) = (\frac{x_1 +(-1)}{2}, \frac{y_1 +(-1)}{2})$

Rewrite the equation to find the coordinates of D

$3 = \frac{x_1 - 1}{2}$ and $5 = \frac{y_1 - 1}{2}$

Solve for each:

$3 = \frac{x_1 - 1}{2}$

$3*2 = \frac{x_1 - 1}{2}*2$

$6 = x_1 - 1$

$6 + 1= x_1 - 1 + 1$

$7 = x_1$

$x_1 = 7$

$5 = \frac{y_1 - 1}{2}$

$5*2 = \frac{y_1 - 1}{2}*2$

$10 = y_1 - 1$

$10 + 1= y_1 - 1 + 1$

$11 = y_1$

$y_1 = 11$

Coordinates of D is (7, 11)

7 0

3 years ago

Finding the Slope: Identify the slope. Will give 5 brainlist points if you are correct

gavmur [86]

Answer:

1/2

Step-by-step explanation:

Slope is rise over run. So you will want to pick 2 points that cross an intersection rise to the upper ones lone, and then run to the point, while counting. I hope this helps :)

- I started at the point (2,0) ran up 1, and then ran over 2 to (0,1).

8 0

3 years ago

Read 2 more answers

You get out of school and walk north for 20 minutes. You

blondinia [14]

Answer:

1.6

Step-by-step explanation:

7 0

3 years ago

Write an equation for the line that gose through the points (-2,6) and (2, 12)

arlik [135]

Answer:

y = $\frac{3}{2}$ x + 9

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 2, 6 ) and (x₂, y₂ ) = (2, 12 )

m = $\frac{12-6}{2-(-2)}$ = $\frac{6}{2+2}$ = $\frac{6}{4}$ = $\frac{3}{2}$ , then

y = $\frac{3}{2}$ x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation.

Using (2, 12 ) , then

12 = 3 + c ⇒ c = 12 - 3 = 9

y = $\frac{3}{2}$ x + 9 ← equation of line

7 0

3 years ago

In a certain lottery, five different numbers between 1 and 20 inclusive are drawn. To win the lottery, a person must select the

kirill [66]

The probability of winning is 1/20P5 = 1/1,860,480

4 0

3 years ago

Read 2 more answers