Logarithms And Logarithmic Functions Worksheet With Answers Page 13
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27sunlight, how many f-stop settings should he move to
accommodate less light?
b. Graph the function.
c. Use the graph in part b to predict what fraction of
7-3 Logarithms and Logarithmic Functions
daylight Benito is accommodating if he moves down
3 f-stop settings. Is he allowing more or less light into
the camera?
48.
SOLUTION:
a.
SOLUTION:
The function represents a transformation of the
Substitute
for p in the formula and simplify.
graph of
.
a =
: The graph is reflected across the x–axis.
h = –2: The graph is translated 2 units to the left.
k = –5: The graph is translated 5 units down.
b.
The function represents a transformation of the
ANSWER:
graph of
.
a = –1: The graph is reflected across the x–axis.
49. PHOTOGRAPHY The formula
c.
Substitute 3 for n in the formula and solve for p .
represents the change in the f-stop setting n to use in
less light where p is the fraction of sunlight.
a. Benito’s camera is set up to take pictures in direct
sunlight, but it is a cloudy day. If the amount of
sunlight on a cloudy day is
as bright as direct
sunlight, how many f-stop settings should he move to
accommodate less light?
b. Graph the function.
c. Use the graph in part b to predict what fraction of
As
, he is allowing less light into the camera.
daylight Benito is accommodating if he moves down
3 f-stop settings. Is he allowing more or less light into
the camera?
ANSWER:
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a . 2
SOLUTION:
b.
a.
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