SOLUTION: The axis of symmetry for f(x)=x^2 + 3x-2 is x=? A. 3 B. -1 C. 1 D. -1.5

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Question 1088881: The axis of symmetry for f(x)=x^2 + 3x-2 is x=?
A. 3
B. -1
C. 1
D. -1.5
Found 2 solutions by Fombitz, MathTherapy:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Complete the square,
f%28x%29=x%5E2%2B3x-2
f%28x%29=%28x%5E2%2B3x%2B%283%2F2%29%5E2%29-2-%283%2F2%29%5E2
f%28x%29=%28x%2B3%2F2%29%5E2-8%2F4-9%2F4
f%28x%29=%28x%2B3%2F2%29%5E2-17%2F4
.
.
x=-3%2F2

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

The axis of symmetry for f(x)=x^2 + 3x-2 is x=?
A. 3
B. -1
C. 1
D. -1.5
matrix%281%2C6%2C+Axis%2C+of%2C+%22symmetry%3A%22%2C+x%2C+%22=%22%2C+-+b%2F%282a%29%29, where: a = 1, and b = 3

We then get: 

That's all!!