Question

The function h is defined by h(x)=b−9÷x, where b is a constant. Find b, if the graph of h passes through the point (−6,19).

Answer 1

h (x) = b - 9/x
At (-6 , 19) ,
h (x) = 19 , x = -6 ,
19 = b - (9/-6)
19 = b + 3/2
b = 35/2