Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = -x2 + 15x - 1
A. f(x) = -(x - 15)2 - 1
vertex: (15, -1)
B. f(x) = -(x - 
)2+ 
vertex: 
C. f(x) = -(x + 
)2- 
vertex: 
D. f(x) = -(x + 15)2 - 451
vertex: (-15, -451)
Answer: B
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Solve the problem.Anita's regular hourly rate is $14 for a 40-hour work week. She is paid time-and-a-half for each hour worked on weekends. One week Anita worked 40 hours from Monday through Friday and 8 hours on Saturday. Find her gross pay for the week.
A. $672 B. $728 C. $560 D. $224
In the given pair of polynomials, the second polynomial is a factor of the first. Factor the first polynomial completely.x3 + 7x2 + 14x + 8; x + 1
A. (x + 1)(x2 + 6x + 8) B. (x + 1)(x2 - 6x + 8) C. (x + 1)(x - 2)(x - 4) D. (x + 1)(x + 2)(x + 4)
Solve the problem.In 1995 the population of a certain city was 23,000. Since then, the population has been growing at the rate of 300 people per year. Is this an example of linear or exponential growth? Find a function f that computes the population x years after 1995.
A. Linear; f(x) = 23,000x + 300 B. Exponential; f(x) = 23,000(1.03)x C. Exponential; f(x) = 23,000(300)x D. Linear; f(x) = 300x + 23,000
Simplify the expression.- 
x + 
- 
x
A. 
x + 
B. - 
x + 
C. - 
x
D. - 
x - 