Find the amplitude, period or phase shift.Find the period of y = 4 cos 
.
A. ?
B. 
C. 
D. 4
Answer: B
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A graph of y = f(x) follows. No formula for f is given. Graph the given equation.y = -2f(x + 1) - 3
?
A. 
B. 
C. 
D. 
Provide an appropriate response.A blueprint calls for a piece of bar stock 
in. long. If a tolerance of ±
in. is allowed, what is the longest permissible measurement for the bar stock?
A. 
B. 
C. 
D. 
Multiply.(x2 - x - 8)(x - 1)
A. x3 - 2x2 - 8x + 8 B. x3 - 7x + 8 C. x3 - 2x2 - 7x + 8 D. x3 - 2x2 - 9x - 8
Solve the problem.A vendor sells hot dogs, bags of potato chips, and soft drinks. A customer buys 2 hot dogs, 4 bags of potato chips, and 3 soft drinks for $9.00. The price of a hot dog is $1.50 more than the price of a bag of potato chips. The cost of a soft drink is $3.00 less than the price of two hot dogs. Find the cost of each item.
A. $2.25 for a hot dog; $0.75 for a bag of potato chips; $1.00 for a soft drink B. $2.00 for a hot dog; $0.50 for a bag of potato chips; $1.00 for a soft drink C. $0.50 for a hot dog; $2.00 for a bag of potato chips; $1.00 for a soft drink D. $2.00 for a hot dog; $1.00 for a bag of potato chips; $0.50 for a soft drink