The graph shows that the cost of the average college mathematics textbook has been rising steadily since 1990.
a. What is the y-intercept?b. What is the slope?c. What is the equation of this line, in slope-intercept form?d. Predict the cost of an average college mathematics textbook in 2016.
What will be an ideal response?
a. 46
b. 6
c. y = 6x + 46
d. 202
Mathematics
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