Reflect the triangle stu across the y-axis. what are the coordinates of the new point t'?

(a.) (6, 9)

(b.) (-6, -9)

(c.) (10, 8)

(d.) (-10, -9)

y = (3/2)x + 3/2

Step-by-step explanation:

As we move from (-3, 6) to (3, -3), x increases by 6 from -3 to +3 and y decreases by 9 from 6 to -3.  Thus, the slope of the line connecting these two points is m = rise / run = -9/6, or m = -3/2.

Using the slope-intercept equation, y = mx + b, we get

6 = (-3/2)(-3) + b, or b = 6 - 9/2 = b, or b = 3/2, and the desired equation is thus

y = (3/2)x + 3/2