The function a(b) relates the area of a trapezoid with a given height of 14 and one base length of 5 with the length of its other base. it takes as input the other base value, and returns as output the area of the trapezoid. a(b)= 14•b+5/2 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? a. b(a)= a/7- 5 b. b(a) = a/7+5 c. b(a)= a/5-7 d. b(a)=a/5+7