Find the values of x for which the given function is concave up, the values of x for which the function is concave down, and any points of inflection.y = x2 - 2x + 7
A. Concave down for x < 1, concave up for x > 1, point of inflection at (1, 6)
B. Concave up for all x, no points of inflection
C. Concave down for all x, no points of inflection
D. Concave up for x < 1, concave down for x > 1, point of inflection at (1, 6)
Answer: B
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Use the laws of exponents to simplify. Do not use negative exponents in the answer. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.102/3 ? 102/5
A. 10016/15 B. 104/15 C. 1004/15 D. 1016/15
Solve the problem.If f varies jointly as q2 and h, and 
when 
and 
, find f when 
and 
.
A. f = 8 B. f = 18 C. f = 72 D. f = 24
List four equivalent forms for the rational expression.- 
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. 
, 
, 
, 
Decide whether or not the correct factored form of the polynomial is given.15y2 + 19y + 6(3y - 2)(5y - 3)
A. Yes B. No