Do you know what the sketch looks like?
It has a maximum at the vertex (because of the negative outside of the brackets).
You might want to start with the intercepts.
Set x = 0 and solve for y (that will be the y-intercept).
Then for the x intercept set y equal to 0 and solve for x : )
Y= -(x-5)(x-1)
Finding AOS, Vertex, Y- Intecept, X Intercept, and two additional points
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