Exponential and Logarithmic Functions True or False

1. Identify the graph that matches this exponential function: f(x) = 2(0.1)x. ->
2. Which function represents exponential decay? -> f(x) = (0.9)2x
3. What is the domain and range of f(x) = 2x + 1? -> Domain: (∞,2), Range: (1,∞)
4. Find f(30) for f(t) = 50(1.012)0.02t rounded to the nearest hundredth. -> 49.57
5. f(x) = abx. Which value affects concavity? -> b
6. What line is y = ex and y = lnx reflected across? -> y = x
7. What is the domain of y = log x? -> (∞,0)
8. What is the range of y = lnx? -> All real numbers
9. If you graphed y = elnx, what type of graph would you get? -> Quadratic
10. What is the function for a logarithm with base e? -> y = lnx

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