Work through this with me??
What is the rate of change for f(x) = −2 cos 4x − 3 on the interval from x = 0 to x = ?

Question

Work through this with me??
What is the rate of change for f(x) = −2 cos 4x − 3 on the interval from x = 0 to x = ?

anonymous · Answer

@ganeshie8 @mathmath333 @math&ing001 @misssunshinexxoxo @paki

freckles · Answer

you are looking for the average rate of change over what interval?
well if you are really finding the average rate of change of f over the interval x=0 to x=?
then you just evaluate:
$$\frac{f(?)-f(0)}{?-0}$$

anonymous · Answer

so what would you do with the ? @freckles

freckles · Answer

plug it into f 
just like you plug in 0 into the f

anonymous · Answer

how do you plug in a question mark lol

freckles · Answer

$$f(?)=-2\cos(4?)-3$$