Using transformations, determine the coordinates of the key point (0, 1) on the graph of the function:

Question

f(x)=-e^x+4

 

A. (0,1) B. (0,5) C. (−4, −1) D. (−4,1) E. None of the above

Answer 1

I think you meant

 

f(x) = e^x + 4

 

 

This is the graph of e^x shifted vertically upward.  Take the y value of the key point and add 4 to that value.

 

Your new point = (0, 1 + 4)

 

                      = (0, 5)