SOLUTION: the vertex of the parabola is at (2,-1).when the y-value is at 0, the x-value is at 5. what is the coefficient of the squared term in the parabolas equation?

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: the vertex of the parabola is at (2,-1).when the y-value is at 0, the x-value is at 5. what is the coefficient of the squared term in the parabolas equation?      Log On


   

Question 353677: the vertex of the parabola is at (2,-1).when the y-value is at 0, the x-value is at 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!
Use the vertex form, y=a%28x-h%29%5E2%2Bk
y=a%28x-2%29%5E2-1
0=a%285-2%29%5E2-1
0=a%283%29%5E2-1
9a=1
highlight%28a=1%2F9%29