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Exponential, Logarithmic, Rational Functions Review
Test Description: Exponential and logarithmic forms, expand logs, inverse variation, fractions
Instructions: Answer all questions to get your test result.
1) Which is not an exponential function?
A
y = 2^x
B
y = x^2
C
y = (1/2)^x
D
y = 3^x
2) Write in exponential form: log base 2 of 8 = 3
A
2^3 = 8
B
3^2 = 8
C
8^3 = 2
D
2^8 = 3
3) Write in exponential form: log base 3 of 9 = 2
A
3^9 = 2
B
3^2 = 9
C
9^2 = 3
D
2^3 = 9
4) log(xy) =
A
(logx)/(logy)
B
(logx)(logy)
C
logx - logy
D
logx + logy
5) log(x/y)
A
logx + logy
B
logx - logy
C
(logx)/(logy)
D
(logx)(logy)
6) Find the matching equation: y varies inversely with x
A
y = kx
B
y = k + x
C
y = k/x
D
y = k - x
7) 4/7 - 2/7 =
A
6/7
B
8/7
C
2/7
D
42/7
8) 1/2 + 2/3
A
3/5
B
7/6
C
1/9
D
4/8
9) 3/5 + 3/4 =
A
6/9
B
27/9
C
27/20
D
9/20
10) logx^2 =
A
log2x
B
2logx
C
logx + 2
D
2/logx
*select an answer for all questions
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