Question

At which root does the graph of f(x) = (x + 4)6(x + 7)5 cross the x-axis?

Answer 1

at x = -7 it will cross over

Explanation:

Roots -4 and -7

the power of 6 means the graph will not crossover (it will be positive...kinda like a parabola)

the power of 5 means there will be a negative component of the graph and it will cross over the axis