For

f(x)=x5,

the instantaneous rate of change is known to be

405

at

x=3.

Find the equation of the tangent line to the graph of

y=f(x)

at the point with x-coordinate

3.

The equation of the tangent line to the graph at the point with x-coordinate

3

is

enter your response here.

(Type an equation. Use integers or fractions for any numbers in the equation.)