Identify where f is increasing and where f is decreasing.f(x) = 
A. increasing: [-8, ?); decreasing: never
B. increasing: never; decreasing: [-8, ?)
C. increasing: never; decreasing: [8, ?)
D. increasing: [8, ?); decreasing: never
Answer: D
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Match the symbol with the answer choice that names the same set of points based on the given figure.
A. 
B. 
C. 
D. None of these
Find the potential function f for the field F.F = 2xex2 + y2i + 2yex2 + y2j
A. f(x, y, z) = 
+ C
B. f(x, y, z) = ex2 + y2 + C
C. f(x, y, z) = 2ex2 + y2 + C
D. f(x, y, z) = ex2 + ey2 + C
Give the degree of the polynomial and identify its leading coefficient.11q2r2 + rs3 + 13qr3s
A. degree: 5; leading coefficient: 11 B. degree: 4; leading coefficient: 11 C. degree: 5; leading coefficient: 13 D. degree: 4; leading coefficient: 1
Solve. Graph the solution on a number line, and express it in interval notation.x + 18 ? - 
or
x + 18 > 
A. x ? 
or x > 
, 
? 
B. - 
? x < - 
, 
C. x ? - 
or x > - 
, 
? 
D. x < -19 or x > -17, (-?, -19) ? (-17, ?)