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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Exponential and Logarithmic Functions
Enrich Your Math Word Power
For each mathematical term, choose the correct meaning.
1
exponential function
A)
f (x) = a
x
where a > 0 and a ≠ 1
B)
f (x) = ax
2
where a ≠ 0
C)
f (x) = ax + b where a ≠ 0
D)
f (x) = x
n
where n is an integer
2
common base
A)
base 2
B)
base e
C)
base
p
D)
base 10
3
natural base
A)
base 2
B)
base e
C)
base
p
D)
base 10
4
domain
A)
the range
B)
the set of second coordinates of a relation
C)
the independent variable
D)
the set of first coordinates of a relation
5
compound interest
A)
simple interest
B)
A = Prt
C)
an irrational interest rate
D)
interest is periodically paid into the account and the interest earns interest
6
continuous compounding
A)
compound interest
B)
using A = Pe
rt
to compute the amount
C)
frequent compounding
D)
using A = P(1 + i)
n
to compute the amount
7
base-a logarithm of x
A)
the exponent that is used on the base a to obtain x
B)
the exponent that is used on x to obtain a
C)
the power of 10 that produces x
D)
the power of e that produces a
8
base-a logarithm function
A)
f (x) = a
x
where a > 0 and a ≠ 1
B)
f (x) = log
a
(x) where a > 0 and a ≠ 1
C)
f (x) = log
x
(a) where a > 0 and a ≠ 1
D)
f (x) = log(x) where x > 0
9
common logarithm
A)
log
2
(x)
B)
log(x)
C)
ln(x)
D)
log
3
(x)
10
natural logarithm
A)
log
2
(x)
B)
log(x)
C)
ln(x)
D)
log
3
(x)
2002 McGraw-Hill Higher Education
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