A power function is a function of the form y=x^a, where a is a number.
The graph of a power function is a curve.
As the coefficient a increases, the flexion of the function becomes less noticeable, as the bend tends to zero, it moves the other way.
Plot a graph of the power function online
Example power function graph:
y=x^4

y=x^(-2)

y=x^5

y=x^(-7)

y=x^9

All graphics are built with our graphical calculator