Solve. Graph the solution on a number line, and express it in interval notation.9x + 9 > 3(2x + 1)
A. x ? -2, [-2, ?)
B. x < -2, (-?, -2)
C. x ? -2, (-?, -2]
D. x > -2, (-2, ?)
Answer: D
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Solve the problem.Can anything be said about the graph of a function y = f(x) that has a second derivative that is always equal to zero? Give reasons for your answer.
What will be an ideal response?
Find the degree and leading coefficient of the polynomial.-10 + 12x4 + 9x + 16x3 - 4x2
A. Degree: 4; leading coefficient: -10 B. Degree: -10; leading coefficient: 12 C. Degree: 3; leading coefficient: 16 D. Degree: 4; leading coefficient: 12
Give the maximum number of zeros the polynomial function may have. Use Descarte's Rule of Signs to determine how many positive and how many negative zeros it may have.f(x) = x7 + x6 + x2 + x + 8
A. 7; 0 positive zeros; 1 negative zero B. 7; 0 positive zeros; 3 or 1 negative zeros C. 7; 0 positive zeros; 0 negative zeros D. 7; 0 positive zeros; 2 or 0 negative zeros
For the geometric sequence, find the common ratio, r.
, 
, 
, 
, 
, . . .
A. 4
B. 5
C. 6
D. 