SOLUTION: Scetch the graph of the quad function. Give the vertex and axis of symmetry. f(x)=x2-2x-8

Question 78746: Scetch the graph of the quad function. Give the vertex and axis of symmetry.
f(x)=x2-2x-8
Answer by chitra(359) (Show Source): You can put this solution on YOUR website!
The given equation is:

This can be written as:

From this equation we observe that the equation of symmetry is x = 1 and it is a parabola facing above (or concave upwards)

The vertex of this graph is (-9,1) and the graph of this is plotted as shown below.

I hope the solution is quite clear and if you have any queries you can get back to me.

Regards
Chitra

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