Brock is a plumber. He charges a flat rate of $40 to visit a house to inspect it's plumbing. He charges an additional $20 for ev
ery hour he spends inspecting or making repairs.
Which graph below correctly shows the price of using Brock's plumbing service vs time?
Which graph below correctly shows the price of using Brock's plumbing service vs time?
2 answers:
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Answer:
Step-by-step explanation:
ƒ(x):
-x + y = -3
For easier calculations, add x to each side. Then
y = -3 + x
x = 1: y = -3 + 1 = -2
x = 0: y = -3 + 0 = -3
x = -1: y = -3 + (-1) = -3 - 1 = -4
g(x):
-6x + y = 2
y = 2 + 6x
x = 1: y = 2 + 6(1) = 8
x = 0: y = 2 + 0(1) = 2
x = -1: y = 2 + 6(-1) = 2 - 6 = -4