Question

F(x)=-14/x^2 average rate

Answer 1

I am assuming that the function is f(x)=20(14)x, if it is

then f(x)=280x , The average rate of change between x =1 and x=2

is the slope of the function between the 2 and 1

Average rate of change = [f(b)-f(a)/b-a] let a and b be x and y

f(a)=f(x)=f(1)=280x1=280

f(b)=f(y)=f(2)=280x2=560

Average rate of change = [f(b)-f(a)/b-a]=[(560-280)/(2-1)]=280

There is no decimal unless the function given is wrong

Explanation: