39) Identify which of the following equations represents an exponential function. Select ALL options. a) 0 b) 1 c) 2 d) 3 40) Based on the shape of the graph, determine if the function is linear, exponential, or quadratic. Do this for each graph provided. A) B) Website B C) YA Members 1800 1200 600 0 10 20 30 X Day D) 2 2 X 4 2 2 2