The polynomial of degree 3, P(x), has a root of multiplicity 2 at x=5 and a root of multiplicity 1 at x=-4. The y-intercept is y=-10. Find a formula for P(x). Thank you so much if you help!

See attachment below and find the equivalent of tan(∠qsr)

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.