If the triangle with vertices A(3,9) B(-1,7) C(5,0) is related over the Y-axis what are the coordinates of the new triangle A’B’C? Please help ! I will make extra points!

A (-3,9)

B(1,7)

C(-5,0)

Step-by-step explanation:

if flipped over y axis then negate the x value

ex: (1,1) turns into (-1,1) (you can graph to check this)

so

A (-3,9)

B(1,7)

C(-5,0)

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b