Solve the problem.
The graph shows the amount of oil in a 150-gallon tank after x minutes have elapsed. (i) Find the slope-intercept form of the equation of the line. (ii) Use the graph to estimate the x-coordinate of the point 
that lies on the line..
A. y = 15x + 2; (2, 32)
B. y = 15x; (2, 30)
C. y = -15x; (2, -30)
D. y = 15x - 2; (0, 30)
Answer: B
Mathematics
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