Solve the problem.If a graph is symmetric with respect to the origin and it contains the point (-4, 7), which of the following points is also on the graph?
A. (4, -7)
B. (7, -4)
C. (-4, -7)
D. (4, 7)
Answer: A
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A farmer wishes to work out the average milk yield in his herd that consists of an equal number of Ayrshire, Friesian, Galloway, and Jersey cows.Suppose the farmer samples the 12 cows in his barn that are closest to where he enters the barn. What type of sampling is being used?
A. quota sampling B. stratified sampling C. convenience sampling D. simple random sampling E. capture-recapture
State the domain and range of the one-to-one functions f and f-1.f(x) = 
A. f(x): domain (-?, ?), range (-?, ?);
f-1(x): domain (-?, ?), range (-?, ?)
B. f(x): domain 
? 
, range 
? 
;
f-1(x): domain 
? 
, range 
? 
C. f(x): domain 
? 
, range (-?, 1) ? (1, ?);
f-1(x): domain (-?, 1) ? (1, ?), range 
? 
D. f(x): domain 
? 
, range (-?, 0) ? (0, ?);
f-1(x): range (-?, 0) ? (0, ?), range 
? 
Find an equation for the described linear function.Through (0, -9) and parallel to 
A. y = -4x - 9
B. y = 
x - 9
C. y = 4x - 9
D. y = -4x + 9
Find the instantaneous rate of change of the function 
when x=3.
a. 1/3 b. 3 c. 9 d. 1/2