Question

Use the graph of f(x) to find the solutions to the equation f(x)=0.

A. Two Solutions: x = -4, 7
B. Two Solutions: x = 4, -7
C. One Solution: x = 28
D. No Solution

Answer 1

Answer: A

In looking for solutions in the graph of y=f(x) where f(x) = 0, you're looking for the x-intercepts. The catch is that you only want the x-value of the intercepts.

The intercepts are (-4,0) and (7,0), so the solutions are -4 and 7.