try this one ...
Hello, there's a graph in my textbook. that appears to start at (0,0) and the only given point is (1,2) and there is a horizontal asymptote at y = 4.
The question asks to give a possible formula for the function.
The equation is increasing from left to right, but it concaves down from (0,0) to oo.
My question is, how am I supposed to find a formula from the given information? thank you