SOLUTION: Find the axis of symmetry y=x^2+7x+10

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Find the axis of symmetry y=x^2+7x+10      Log On


   

Question 110399: Find the axis of symmetry
y=x^2+7x+10
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Axis of symmetry= -b/2a
y=x^2+7x+10
a=1, b=7, c=10
-7/2=-3.5
.
Another way is to find the average of the x intercepts
(x+5)(x+2)=0
x=-2, x=-5
(-2-5)/2=-7/2=-3.5
graph%28500%2C500%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B7x%2B10%29
.
Ed