What is the measure of AC?

The $x$-intercepts of the parabola $y = x^2 + bx + c$ are $(-3,0)$ and $(5,0).$ find the equation of the parabola, and submit your answer in $y = ax^2 + bx + c$ form.

The graph shown is the graph of which function?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30