Question

U4gent help needed
help me with the question of o.math​

Answer 1

1≤f(x)≤5

Explanation:

-1≤x≤1

-2≤2x≤2 (Multiplied by 2 both side)

-2+3≤2x+3≤2+3 (Adding three both sides)

1≤f(x)≤5