6.2 ANSWERS which level of difficulty should you choose?
Answers which level of difficulty should you choose?
Given the formula y = ( x + 5 )2 - 2
Calculate y when
a) x = 2
Step 1: Fill x = 2 into your formula
y = ( 2 + 5 )2 - 2
Step 2: Calculate think about the order of operations!
y = 72 - 2
y = 49 - 2 = 47
y = 47
b) x = -8
Step 1: Fill x = -8 into your formula
y = ( -8 + 5 )2 - 2
Step 2: Calculate think about the order of operations!
y = (-3)2 - 2 (make sure you use brackets with negative numbers!!)
y = 9 - 2 = 7
y = 7
