Question

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.

Answer 1

Answer:

y = (x + 3)(x - 5)

y = x^2 - 5x + 3x - 15

y = x^2 - 2x - 15