PLEASE ANSWE

The equation y = -7x – 5 and another equation have a solution of (-2, 9). Which of the following could be the second equation?

A. y= 1/2x+10
B. y=-1/2x+7
C. y=3x-3
D. y=2x+5

A. y = x + 10

Step-by-step explanation:

Given;

If we equate the value of y in the first equation and the value of y in the second equation, then the solution of x should be -2 . Let's test this with equation A:

-7x - 5 = x + 10

-7x - x = 10 + 5

-x = 15

x = (15 × -2) ÷ 15 = -2

*This proves that equation A has the same value of x as our first equation!

Let's test if equation A has a solution; y = 9:

y = (-2) + 10 = 9

*This proves that equation A has the same value of y as our first equation!

So the second equation is,

A. y = x + 10

probability for j is 1/4

while

a is 1/6

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have