Calculate the slope of the line passing through the given points. If the slope is undefined, so state. Then indicate whether the line rises, falls, is horizontal, or is vertical.(-6, 9), (-3, 9)
A. 6, rises
B. - 2, falls
C. undefined, is vertical
D. 0, is horizontal
Answer: D
Mathematics
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Find the inverse of f(x).f(x) = 4x - 9
A. f-1(x) = 
B. f-1(x) = 
+ 9
C. f-1(x) = 
D. f-1(x) = 4x + 9
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You are given the graph of a function f. Determine the intervals where f is concave downward.
?
?
A. 
B. ?
C. ?
D. ?
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The number of desks in one row is 
. How many desks are there in a room of 
rows if they are arranged in a rectangular arrangement?
?
A. 
B. 
C. 
D. 
E. 
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Solve the problem.In how many ways can a group of 6 students be selected from 7 students?
A. 42 ways B. 1 way C. 6 ways D. 7 ways
Mathematics