Solving Logarithmic Equations using Technology Answers
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1
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Which expression can be used to approximate the expression below, for all positive numbers a, b, and x, where a 1 and b 1?
A
StartFraction log Subscript b Baseline x Over log Subscript b Baseline a EndFraction
B
StartFraction log Subscript b Baseline a Over log Subscript b Baseline x EndFraction
C
StartFraction log Subscript a Baseline b Over log Subscript x Baseline b EndFraction
D
StartFraction log Subscript a Baseline x Over log Subscript b Baseline x EndFraction
2
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A student solved the equation below by graphing.Which statement about the graph is true?
A
The curves do not intersect.B
The curves intersect at one point.C
The curves intersect at two points.D
The curves appear to coincide.3
What is the approximate value of x in the equation below?
A
–2.523B
–1.317C
2.880D
7.4854
Which system of equations could be graphed to solve the equation below?
A
y 1 = StartFraction log 0.5 Over x EndFraction , y 2 = StartFraction log 3 Over 2 + x EndFraction
B
y 1 = StartFraction log x Over log 0.5 EndFraction, y 2 = StartFraction log 2 + x Over log 3 EndFraction
C
y 1 = StartFraction log 0.5 Over log 3 EndFraction, y 2 = StartFraction log x Over log 2 + x EndFraction
D
y 1 = StartFraction log x Over log 0.5 EndFraction, y 2 = StartFraction log 2 Over log 3 EndFraction + x
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