A function f(x), a point x0, the limit of f(x) as x approaches x0, and a positive number ? is given. Find a number 
such that for all x, 0 < 
< ? ? 
< ?.f(x) = 9x + 3, L = 21, x0 = 2, and ? = 0.01
A. 0.005
B. 0.005556
C. 0.001111
D. 0.002222
Answer: C
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Between the ages of 7 and 11 years, the weight w, in pounds, of a certain girl is given by the formula
,
where t is her age in years. During the same age range the relationship between her age t and her height h, in inches, is given by
.
A: Find a formula that expresses the girl's height as a function of her weight. Write your answer in the form 
, and round the coefficient a of w to two decimal places.B: Use your answer to part A to determine her height when her weight is 6 pounds.C: Use your answer to part A to find a formula that expresses the girl's weight as a function of her height.
What will be an ideal response?
Find the average value of the function f over the region R.f(x, y) = e5xR: 0 ? x ? 
, 0 ? y ? 
A. 
B. 2e - 1
C. e - 1
D. 
Sketch the graph of the polynomial function.f(x) = (x - 4)4
A. 
B. 
C. 
D. 
Write an equation for a function that has a graph with the given characteristics.The shape of y = 
is shifted 7.9 units to the left. This graph is then vertically stretched by a factor of 1.9. Finally, the graph is reflected across the x-axis.
A. f(x) = -1.9
B. f(x) = -7.9
C. f(x) = -1.9
D. f(x) = 1.9