Problem: how to solve for n in y=n^2-n-30
how would you solve
This can be factored very easily.
y = n^2 - n - 30
y = (n - 6)(n + 5)
Set each factor to zero to solve for n.
n - 6 = 0
n = 6
n + 5 = 0
n = -5
Graphing this, labeling the x-axis as the n-axis,
you would have a parabola that crosses the n-axis
at (-5, 0) and (6, 0)