Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x| ? 2
A. [-2, 2]
B. (-2, 2)
C. (-?, -2] ? [2, ?)
D. (-?, 2]
Answer: A
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Multiply and simplify.
? 
A. 
B. 0
C. 
D. 1
Solve the problem.A projectile is fired upward from the ground with an initial velocity of 400 feet per second. Neglecting air resistance, the height of the projectile at any time t can be described by the polynomial function P(t) = -16t2 + 400t. Find the height of the projectile at t = 9 seconds.
A. 3456 ft B. 2404 ft C. 2304 ft D. 3600 ft
If the following is a polynomial function, then state its degree and leading coefficient. If it is not, then state this fact.f(x) = -11 - 15x + 11x2 + 17x3 + 3x4
A. Degree: 4; leading coefficient: -11 B. Not a polynomial function. C. Degree: 4; leading coefficient: 3 D. Degree: -11; leading coefficient: 3
Find the axis of symmetry of the quadratic function.f(x) = 11(x - 3)2 + 6
A. x = -3 B. x = 6 C. x = 11 D. x = 3