Two similar triangles below are shown on the coordinate grid:

(Look at pic)

Which set of transformations has been performed on triangle PQR to form triangle P′Q′R′?

Dilation by a scale factor of fraction 1 over 2 followed by reflection across the x-axis
Dilation by a scale factor of 2 followed by reflection across the x-axis
Dilation by a scale factor of fraction 1 over 2 followed by reflection across the y-axis
Dilation by a scale factor of 2 followed by reflection across the y-axis

the answer is a

step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

step-by-step explanation:

for the free