Answer on Algebra Question for Jane
a. What is the x-coordinate of the intersection point of the graphs? Decribe what the x-coordinate means in practical terms.
0.35x+40 = 0.45x+36
4 = 0.1x
x = 40
y = 0.35*40+40 = 54
So, (x,y) = (40,54) - point of intersection.
That point is the point of payment equality: you can take a truck and drive it 40 miles, the price will be the same for both first and second companies - $54.
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