The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. s (m)
When is the body moving backward?
A. 8 < t < 9
B. 2 < t < 3, 4 < t < 5, 7 < t < 8
C. 8 < t ? 10
D. 2 < t < 3, 4 < t < 5, 7 < t < 9
Answer: D
Mathematics
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Provide an appropriate response.The curve y = ax2 + bx + c passes through the point (2, 8) and is tangent to the line 
at the origin. Find a, b, and c.
A. a = 2, b = 0, c = 1 B. a = 2, b = 0, c = 0 C. a = 1, b = 2, c = 0 D. a = 0, b = 1, c = 2
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Solve the inequality, then graph the solution.a + 10 < -1 
A. (-?, -11]
B. [-11, ?)
C. (-?, -11)
D. (-11, ?)
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Find all solutions of the equation. Express the solution in radians.tan x = 
A. 
+ 2n? or 
+ 2n?
B. 
+ 2n? or 
+ 2n?
C. 
+ n?
D. 
+ n?
Mathematics
Find the sum or difference.4.236 + (-5.540)
A. -9.676 B. -9.776 C. -1.304 D. 23.467
Mathematics