Solve the equation.15y2 + 32y + 16 = 0
A. y = 
, 
B. y = 
, - 
C. y = - 
, - 
D. y = - 
, - 
Answer: D
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Parametric equations and and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 25t2, y = 5t, -? ? t ? ?
A. x = y2; Entire parabola, top to bottom (from
1st quadrant to origin to 4th quadrant)
B. y = x2; Entire parabola, right to left (from
1st quadrant to origin to 2nd quadrant)
C. x = y2; Entire parabola, bottom to top (from
4th quadrant to origin to 1st quadrant)
D. y = x2; Entire parabola, left to right (from
2nd quadrant to origin to 1st quadrant)
Find the root if it is a real number.- 
A. 3 B. 9 C. -27 D. -3
Factor the polynomial completely using the trial and error method.11x2 + 122x + 11
A. (11x + 11)(x + 1) B. prime C. (11x + 1)(x + 11) D. (11x - 1)(x - 11)
Evaluate the algebraic expression for the given value of the variable.
for x = 3
A. - 108 B. 12 C. - 12 D. 3