Use the accompanying graph of a particle moving on a coordinate line with velocity v = f(t) in ft/sec at time t seconds. The axes are marked off at one-unit intervals. Use these terms to describe the motion state: moving forward/backward, increasing/decreasing speed, and resting. Recall that speed = 
. 
Give the interval(s) when the particle is moving backward.
A. (8, 11) and (19, 21)
B. (8, 21)
C. (11, 19)
D. (0, 8) and (21, 25)
Answer: C
Mathematics
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A. 
, x = - 
B. 
, x = - 
C. 
, y = 
D. 
, y = - 
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Determine whether the function is even, odd, or neither.f(x) = |x2 + x|
A. Neither B. Even C. Odd
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Provide an appropriate response.If the given problem 
÷ 
= 
, what must be the factors that are represented by the question mark?
A. 
B. 
C. (y - 9)(y + 9)
D. (y + 9)(y + 9)
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Find any numbers for which the rational expression is undefined.
A. x = 5, x = 8 B. x = 3, x = -3 C. x = -5, x = -8 D. x = 0
Mathematics