Find f"(x) for the function.f(x) = 
A. 
B. 
C. 
D. 
Answer: D
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Write the English phrase as an algebraic expression. Let x represent the number. Simplify the expression, if possible.3 more than a number
A. 3x
B. x + 3
C. 
D. x - 3
Which set of ordered pairs is a function? For each function, name the set of inputs (domain) and the set of outputs (range).
a. (7, 9), (7, 11), (7, 13) b. (7, 9), (9, 11), (11, 13) A) b is a function. Domain is {7, 9, 11}, range is {9, 11, 13}. B) a is a function. Domain is {7}, range is {9, 11, 13}. C) a is a function. Domain is {7}, range is {9, 11, 13}. b is a function. Domain is {7, 9, 11}, range is {9, 11, 13}. D) b is a function. Domain is {7}, range is {9, 11, 13}. a is a function. Domain is {7, 9, 11}, range is {9, 11, 13}. E) a and b are not functions.
Find the standard form of the equation of the ellipse and give the location of its foci.
Center at (-1, 1)
A. 
+ 
= 1
foci at (-1 + 3
, 1) and (-1 - 3
, 1)
B. 
+ 
= 1
foci at (- 3
, 1) and (3
, 1)
C. 
+ 
= 1
foci at (-1 + 3
, -1) and (-1 - 3
, -1)
D. 
+ 
= 1
foci at (1 + 3
, -1) and (1 - 3
, -1)
Combine and simplify.
+ 7
- 2
A. 5
B. 39
C. 39
D. 5