Find the slope of the line.-3y = x + 1
A. -3
B. - 
C. 
D. 3
Answer: B
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Solve the problem.Let the distance from home in miles of a person after t hours on a straight path be given by 
Approximate the average rate of change of s from 
to 
to the nearest tenth and interpret the result.
A. about 8.2; average speed is about 8.2 mi/hr B. about 3.7; average speed is about 3.7 mi/hr C. about 2.8; average speed is about 2.8 mi/hr D. about 2.6; average speed is about 2.6 mi/hr
Factor the trinomial.n4 - 6n2 - 16
A. (n2 - 2)(n2 - 8) B. (n2 + 2)(n2 - 8) C. (n2 + 6n + 2)(n2 - n - 8) D. (n2 - 2)(n2 + 8)
Determine whether (f ? g)(x) = x and whether (g ? f)(x) = x.f(x) = 
, g(x) = x2
A. No, no B. No, yes C. Yes, yes D. Yes, no
Find the points of inflection.f(x) = x4 - 24x2
A. (0, 0), (-2, -80), (2, -80)
B. (-2, -80), (2, -80)
C. (0, 0)
D. (-2
, 144), (2
, 144)