SOLUTION: for the quadratic function: f(x)=3(x+4)^2 state the vertex:( , ) does the parabola open up or down. the function has __

SOLUTION: for the quadratic function: f(x)=3(x+4)^2 state the vertex:( , ) does the parabola open up or down. the function has ___ real zeros

Question 83339: for the quadratic function:
f(x)=3(x+4)^2
state the vertex:( , )
does the parabola open up or down.
the function has ___ real zeros
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Using the vertex form

where a states the shape and direction, and (h,k) is the vertex,

The equation which also looks like , has a vertex at (-4,0). Also, since a>0, the graph opens up. So here's the graph to visually sum it up

graph of with the vertex (blue dot)
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