Find the value(s) of x if f(x) = 1.
A. 9
C. -1.5
B. 4
D. both a and c

Answer:
D. both a and c
Step-by-step explanation:
We want to find the x value when the y value is 1
There are two x values when the y value is 1
When x = -1.5 y=1 and when x = 9 y = 1