On paper please

3. Communication [6 marks] a) Explain how to identify whether a given graph shows an exponential function or a polynomial function. b) Explain how to identify whether a given equation represents an exponential function and how to determine the base of the function. c) Explain how to distinguish between exponential growth and decay in both graphs and equations of exponential functions. 4. Thinking/Inquiry/Problem Solving [16 marks] [Next page provides grids for (b) and workspace. ] a) Match each of the following functions with its graph, and explain why the function describes the graph. Note that the graphs are all drawn with different window settings but the same scale on the axes. f (x ) = -50 g (x) = -4 +. 25 Cold h(x) = 3* +5 i(x)=-7(6) -10 ifi. iv