Opal plots point D at (Negative 3 and one-half, one-half). Which graph shows the location of point D? On a coordinate plane, poi
2 answers:
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The equation for a parabola with vertex 
is
We plug in:
We find
by plugging in the point 
:
So our equation is
To find x-intercepts, we set
:
So the x-intercepts are 9 and -1.
We plug in:
We find
So our equation is
To find x-intercepts, we set
So the x-intercepts are 9 and -1.