SOLUTION: Which of the following graphs shows a parabola with a vertex of (-4,4) and solutions of (-6,0) and (-2,0)?

Algebra ->  Graphs -> SOLUTION: Which of the following graphs shows a parabola with a vertex of (-4,4) and solutions of (-6,0) and (-2,0)?       Log On


   

Question 1203365: Which of the following graphs shows a parabola with a vertex of (-4,4) and solutions of (-6,0) and (-2,0)?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Use the two given roots.
y=a%28x%2B6%29%28x%2B2%29
but knowing them, you at least should look at your graph choices and understand which graph shows these two zeros and which graphs do not.


The vertex,
4=a%28-4%2B6%29%28-4%2B2%29 (but you do not really need to solve for a, to pick the right graph.)
4=a%2A2%2A%28-2%29
a=-1


pick the graph which is in agreement with this:
graph%28400%2C400%2C-8%2C4%2C-6%2C6%2C-%28x%2B6%29%28x%2B2%29%29

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
Which of the following graphs shows a parabola with a vertex of (-4,4) and solutions of (-6,0) and (-2,0)?


"Which of the following" obviously indicates that there are CHOICES. Where are they?