The function a(b) relates the area of a trapezoid with a given height of 10 and one base length of 7 with the length of its other base.
It takes as input the other base value, and returns as output the area of the
trapezoid.
+7
a(b) = 10
2
Which equation below represents the inverse function b(a), which takes the
trapezoid's area as input and returns as output the length of the other base?
O A. (a) = 9+5
O B. b(a) = 9 - 5
O C. b(a) = -7
O D. (a)+7