SOLUTION: the vertex of the parabola is at (-2,-3). when the y-value is -2, the x-value is -5. what is the coefficient of the squared term in the parabolas equation?

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: the vertex of the parabola is at (-2,-3). when the y-value is -2, the x-value is -5. what is the coefficient of the squared term in the parabolas equation?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 944875: the vertex of the parabola is at (-2,-3). when the y-value is -2, the x-value is -5. what is the coefficient of the squared term in the parabolas equation?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Using the vertex form,
y=a%28x%2B2%29%5E2-3
Using the point,
-2=a%28-5%2B2%29%5E2-3
-2=a%28-3%29%5E2-3
1=a%289%29
highlight%28a=1%2F9%29
.
.
.
graph%28300%2C300%2C-6%2C6%2C-6%2C6%2C%28x%2B2%29%5E2%2F9-3%29