The graphs show the position s, velocity v = ds/dt, and acceleration a = d2s/dt2 of a body moving along a coordinate line as functions of time t. Which graph is which?
A. C = position, B = velocity, A = acceleration
B. B = position, C = velocity, A = acceleration
C. C = position, A = velocity, B = acceleration
D. B = position, A = velocity, C = acceleration
Answer: A
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Find the equation of the circle that satisfies the following conditions. Express the final equation in the form x2 + y2 + Dx + Ey + F = 0.Tangent to the x axis, a radius of length 7, and abscissa of center is –8
A. x2 + y2 - 16x - 14y + 64 = 0 and x2 + y2 - 16x + 14y + 64 = 0 B. x2 + y2 + 16x - 14y + 64 = 0 C. x2 + y2 + 16x - 14y + 64 = 0 and x2 + y2 + 16x + 14y + 64 = 0 D. x2 + y2 + 16x + 14y + 64 = 0 E. x2 + y2 - 16x + 14y + 64 = 0
Determine whether the sequence of vertices is an Euler circuit.
D ? C ? B ? A ? E ? D
A. Yes B. No
Simplify by combining like terms.
b2 - 
b2
A. 
b2
B. - 
b2
C. - 
b2
D. 
b2
Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1. Zeros: -3, -2, 3; degree 3
A. f(x) = x3 - 2x2 + 9x - 18 B. f(x) = x3 + 2x2 + 9x + 18 C. f(x) = x3 - 2x2 - 9x + 18 D. f(x) = x3 + 2x2 - 9x - 18