Dawn is selling her MP3 player for 3/4 of the original price. The original price for the MP3 player was $40. How much is she sel
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we know that
The equation of a vertical parabola in vertex form is equal to
where
(h,k) is the vertex
if ------> the parabola open upward ( the vertex is a minimum)
if ------> the parabola open downward ( the vertex is a maximum)
in this problem we have
convert to vertex form
Group terms that contain the same variable, and move the constant to the opposite side of the equation
Complete the square. Remember to balance the equation by adding the same constants to each side
Rewrite as perfect squares
--------> equation in vertex form
the vertex is the point ----> is a minimum (parabola open upward)
using a graphing tool
see the attached figure
