You can put this solution on YOUR website! Sketch the graph of the below function:
y=-x^2+5x-6
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Pick values for x (as many as you like) and find y.
Plot the points.
Draw a curve thru them.
You can put this solution on YOUR website! The quadratic part is factorable, and in finding the exact middle of the roots, you can also find the vertex. Sketch using those three points for guidance.