Lin is stacking books for a display at the bookstore where he works. the equation that represents the height of the height of the stack of books in inches is y=9.5+3.5(x-1) rewrite the equation in the form of y=c+dx
A.y=-3.5x+6.5
B .y=3.5x+6
C. y=3.5x+6
D.y=3.5x+7.5