Solve the problem.A zoom lens in a camera makes a rectangular image on the film that is
length by
width. As the lens zooms in and out, the size of the image changes. Find the rate at which the area of the image begins to change
if the length of the frame changes at
and the width of the frame changes at
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A. 4.4 cm2/sec
B. cm2/sec
C. 5.6 cm2/sec
D. 1.1 cm2/sec
Answer: A
Mathematics
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A.
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Find the inverse of the function.f(x) = -6 - 7x
A. f-1(x) = - -
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