19. Mariella is driving a distance of 100 miles. She drives at a constant rate of 60 miles per hour. The equation that represents the distance she has
left to go is y= 100 – 60x, where x is the number of hours she has
already driven.
a. Graph the equation.
b. State the slope and the y-intercept of the graph from part a.
c. Reason abstractly. Explain what the slope and y-intercept of the
line represent in this item.
= Course 3/PreAlgebra, Unit 2 Equations

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