Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. Th
e oil change for one car required 5 quarts of oil and cost $24.35. The oil change for the other car required 7 quarts of oil and cost $28.35. How much is the labor fee and how much is each quart of oil?
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Answer:
The answer to your question is
Step-by-step explanation:
Process
1.- Get to points of the line
A (-2, 0)
B (0, -1)
2.- Find the slope of the line
Slope = m =
Substitution
m =
3.- Find the equation of the line
y - y1 = m(x - x1)
Substitution
y - 0 = -1/2(x + 2)
Simplification
y = -1/2x - 1