Find dy for the given values of x and ?x.y = 5x2 - 2x + 3; x = 2, ?x = - 
A. 3
B. 6
C. -6
D. -3
Answer: D
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Decide if the set of ordered pairs does or does not represent a function.{(3, -9), (3, -1), (4, 8), (8, 9), (11, -5)}
A. Yes B. No
Decide whether the relation is a function.{(1, -1), (2, 1), (6, -8), (9, -8), (12, 5)}
A. Function B. Not a function
Solve the problem.A theater has 26 rows with 22 seats in the first row, 27 in the second row, 32 in the third row, and so forth. How many seats are in the theater?
A. 2197 seats B. 4524 seats C. 2262 seats D. 4394 seats
Solve the problem.To convert a temperature from degrees Celsius to degrees Fahrenheit, you multiply the temperature in degrees Celsius by 1.8 and then add 32 to the result. Express F as a linear function of c.
A. F(c) = 1.8c + 32
B. F(c) = 33.8c
C. F(c) = 
D. F(c) = 1.8 + 32c