Answer:
1 , 7 , 7
Explanation:
to evaluate f(- 2) means what is the value of y when x = - 2
locate x = - 2 on the x- axis , go vertically up to meet the graph at (- 2, 1)
f(- 2) = 1
similarly
f(0)
locate x = 0 , at the origin, go vertically up to meet the graph at (0, 7 )
f(0) = 7
f(3)
locate x = 3 on the x- axis , go vertically up to meet the graph at (3, 7 )
f(3) = 7