Why is 1.387^-8 m equal to 138.7 pm ?

Given the parent function of [tex]f(x)=x^4[/tex], what change will occur when the function is changed to [tex]f(\frac{1}{2} x)[/tex]?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

What is the average rate of change for this function for the interval from x=2 to x=4 ?