Question

State the solution of the equation f(x) = -1

Answer 1

x = - 3

Explanation:

f(x) = - 1 means the value of y equals - 1

we need to find the value of x that makes y = - 1

locate y = - 1 on the y- axis, go left, horizontally to the graph

the point where they meet is (- 3, - 1 )

Then when x = - 3 , f(x) = - 1