Javier is comparing costs of two cars. Car A costs $130 per month for insurance and $0.10 per mile to run. Car B costs $108 per
2 answers:
Answer:
Let 'x' be the number of miles driven each month
Let 'y' be the total cost to run the car
Car A costs $130 per month for insurance and $0.10 per mile to run.
Equation becomes:
Car B costs $108 per month for insurance and $0.15 per mile to run.
Equation becomes:
Now, we will make these equations equal to make the costs equal.
=
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Answer:
y = -2x - 7
Step-by-step explanation:
x - 2y = 6
-2y = -x + 6
Divide the whole equation by (-2)
slope = 1/2
Slope of the line perpendicular to this line = -1/m = -1 ÷ (1/2)
(-3, - 1)
y -y1 = m(x -x1)
y - [-1] = -2(x - [-3])
y + 1 = -2(x + 3)
y + 1= x* (-2) + 3*(-2)
y + 1 = -2x - 6
y = -2x - 6 - 1
y = -2x - 7