Please show calculations Using the function fx 2x find the f

Using the function, fx) 2-x, find the following: (a) (x +h) (b) h)-- f(x) fox h) --f(x) (c) x +h) (Simplify your answer. f(x +h) f(x) (Simplify your answer.

Solution

f(x+h) means you put an x+h in for every x you see

f(x+h)=2-(x+h)

Substract f(x) from that f(x) is original problem

f(x+h)-f(x)=2-(x+h)-(2-x)=2-x-h-2+x=h

Then just divide by h

Finally we get -1