The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
During which hour did the temperature increase the most?
A. 10 a.m. to 11 a.m.
B. 12 p.m. to 1 p.m.
C. 9 a.m. to 10 a.m.
D. 1 p.m. to 2 p.m.
Answer: A
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Solve. Clear decimals first.30.8y - 215.6 = 46.2y - 323.4
A. -14 B. 7 C. -7 D. 14
Solve the problem.Escott used the formula n2 - 79n + 1601 to generate prime numbers for whole numbers n. The formula fails to produce a prime for n = 80. Evaluate Escott's formula for n = 81 and determine whether this is a prime number. If it is not a prime number, give its prime factors.
What will be an ideal response?
Graph the equation. Include the coordinates of any local extreme points and inflection points.y = 
A. local minimum: (0, 0)
no inflection points
B. local minimum: 
no inflection points
C. local minimum: (0, 0)
inflection points: 
, 
D. local minimum: 
no inflection points
Find the x-intercepts (if any) for the graph of the quadratic function.f(x) = (x + 3)2 - 9
A. (0, 0) and (-9, 0) B. (0, 0) and (-6, 0) C. (6, 0) and (-6, 0) D. (0, 0) and (6, 0)