top of page
Solve when f(-2)
FIRST TAKE X, and qualify it for one of the valid ranges
ONE OR MORE MAYBE??? JUST CHECK ALL RANGES FOR QUALIFICATION
The x value in this problem does only qualify for one range. You see -2 value again in the choices but that one is x greater than -2.
Knowing this now, we then know
​
f(2) = [-x+3
= -(-2)+3
= 5
​
​
f(5) = x > 3
= 7
​
f(0) = 2x²-x
= 0
​
f(3) = No range valid for the value of x = 3
​
bottom of page