How can you use transformations to graph this function? Explain your steps.

Answer:

Start with y = 7^x. Reflect it across the y-axis to get y = 7^{-x}, stretch it vertically by a factor of 3 to get y = 3(7^{-x}), and shift it up 2 units to get y = 3(7^{-x}) + 2. The horizontal asymptote is y = 2.