Answer:
18
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
Step-by-step explanation:
Plane S contains points A, B and C while Plane T contains points A, D and E.
Hence the answer is Plane S.
First substitute y=5x+7 so that would turn into 5x+7=6x
Then, isolate/solve for x for 5x + 7 = 6x, in this problem x=7
Substitute x=7 into y=5x+7
y=42
x=7, y=42
(7,42)
Scale factor is 2
30/15 = 2
20/10 = 2