What is the domain of the following function?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Me asap! what is the slope of this line? enter your answer in the box.