Graph the function. State whether it is increasing, decreasing, or constant..h(x) = -5x + 6
A. increasing
B. increasing
C. decreasing
D. decreasing
Answer: D
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Use the following definitions to determine if the statement is true or false. N = {x : x is a natural number}I = {x : x is an integer}R = {x : x is a real number}W = {x : x is a whole number}Q = {x : x is a rational number}N is a subset of N.
A. True B. False
Perform the indicated operations.53 - 32 + 33 - 52
A. 118 B. -82 C. -118 D. 82
Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = cos-1(x2 + y2)
A. Domain: all points in the x-y plane; range: all real numbers; level curves: circles with centers at (0, 0)
B. Domain: all points in the x-y plane satisfying x2 + y2 ? 1; range: real numbers - 
? z ? 
; level curves: circles with centers at (0,0) and radii r, 0 < r ? 1
C. Domain: all points in the x-y plane; range: real numbers - 
? z ? 
; level curves: circles with centers at (0, 0)
D. Domain: all points in the x-y plane satisfying x2 + y2 ? 1; range: real numbers - 
? z ? 
; level curves: circles with centers at (0, 0)
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 1
C. 
D. 