Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -x2 - 2x - 9
A. minimum; - 8
B. maximum; - 8
C. maximum; - 1
D. minimum; - 1
Answer: B
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Tell if the square root is rational, irrational, or not a real number. If the square root is rational, find the exact value; if the square root is irrational, write the approximative value rounded to 2 decimal places.
A. not a real number B. irrational, 7.55 C. irrational, -7.55 D. rational, -57
Solve the problem.If A-1 = 
, solve AX = 
for X.
A. X = 
B. X = 
C. X = 
D. X = 
Solve the equation by factoring.x2 = x + 72
A. {8, 9} B. {1, 72} C. {-8, 9} D. {-8, -9}
Solve the problem.The NSC (Not So Consistent) Corporation has just completed its first year of business. The following chart shows its monthly profit (or loss).MonthProfit (Loss) in DollarsJanuary-14,526February1874March-8977April-14,107May14,073June14,632July-13,834August-13,170September-4860October6630November-3338December-974The profit was greatest in 
.
A. December B. June C. February D. January