SOLUTION: Quadratic relations
7) Sketch a graph of each quadratic. Label the x-intercepts and the vertex.
b) y=2(x-3)(x+1) pleaseeeeeeeeeeee
thank you very muchhhhhhhhhhhh
Algebra.Com
Question 178080: Quadratic relations
7) Sketch a graph of each quadratic. Label the x-intercepts and the vertex.
b) y=2(x-3)(x+1) pleaseeeeeeeeeeee
thank you very muchhhhhhhhhhhh
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The x-intercepts are the roots. The roots are values of that make
. Looking at the equation, if
And if
So, and must be the x-intercepts.
The vertex is always exactly midway between the roots, so
So, the vertex is at (,)
So, the vertex must be at (1,-8)
Now I'll graph the equation to prove what I said
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