Decide whether the relation is a function, and give the domain and range.
A. Function; domain: (-?, ?) ; range: (-?, ?)
B. Not a function; domain: (-?, ?) ; range: (-?, ?)
C. Not a function; domain: (-?, 1] ; range: (-?, ?)
D. Function; domain: (-?, 1] ; range: (-?, ?)
Answer: C
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Solve the problem.The product of two consecutive integers is 7 less than 7 times their sum. Find the integers.
A. 0, 1 B. 0, 1 or 13, 14 C. 0, 1 or 14, 15 D. 13, 14
Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.
a = b = 4 m
A. 4.6 m B. 21 m C. 11.1 m D. 123 m
Find two square roots for the complex number. Leave your answers in trigonometric form.
?
?
?
A. 
B. 
C. 
D. 
E. 
Solve.A vendor has learned that, by pricing hot dogs at $1.00, sales will reach 102 hot dogs per day. Raising the price to
will cause the sales to fall to 66 hot dogs per day. Let y be the number of hot dogs the vendor sells at x dollars each. Write a linear equation that relates the number of hot dogs sold per day to the price x.
A. y = -48x + 150
B. y = 48x + 54
C. y = - 
x + 
D. y = -48x - 150