Think you’ve got your head wrapped around Exponential and Logarithmic Functions? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. Identify the graph that matches this exponential function: f(x) = 2(0.1)x.
Q. Which function represents exponential decay?
f(x) = 2x + 1
f(x) = (0.9)2x
f(x) = -0.3x – 2
Q. What is the domain and range of f(x) = 2x + 1?
Domain: All real numbers, Range: All real numbers
Domain: (1,∞), Range: (0,∞)
Domain: All real numbers, Range: (1,∞)
Domain: (∞,2), Range: (1,∞)
Domain: All real numbers, Range: (0,∞)
Q. Find f(30) for f(t) = 50(1.012)0.02t rounded to the nearest hundredth.
25.65
35.62
40.29
49.57
50.36
Q. f(x) = abx. Which value affects concavity?
a
b
f(x)
x
None of the above
Q. What line is y = ex and y = lnx reflected across?
y = ex
y = x
y = 1
x = 0
y = elnx
Q. What is the domain of y = log x?
All real numbers
(-1,∞)
(∞,0)
(0,∞)
None of the above
Q. What is the range of y = lnx?
(lne,∞)
(0,∞)
(-1,∞)
(∞,0)
All real numbers
Q. If you graphed y = elnx, what type of graph would you get?
Linear
Quadratic
Exponential
Logarithmic
None of the above
Q. What is the function for a logarithm with base e?
y = log x
y = lnx
y = lne
y = log ln
None of the above