# SOLUTION: sketch graph of quadratic function f(x)=x^2-2x-3

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Question 633466: sketch graph of quadratic function
f(x)=x^2-2x-3

Found 3 solutions by stanbon, richwmiller, ewatrrr:
You can put this solution on YOUR website!
f(x)=x^2-2x-3
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Cheers,
Stan H.
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You can put this solution on YOUR website!
 Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc) Quadratic equation (in our case ) has the following solutons: For these solutions to exist, the discriminant should not be a negative number. First, we need to compute the discriminant : . Discriminant d=16 is greater than zero. That means that there are two solutions: . Quadratic expression can be factored: Again, the answer is: 3, -1. Here's your graph:

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