C957 Applied Algebra - Module 1 Quiz

A rental car company charges a flat fee of $39 for a car rental. They charge an additional $0.62 for each mile driven. Which function F represents the cost to rent a car, where m represents the number of miles? A. F(m)=39+0.62m B. F(m)=39+0.62+m C. F(m)=39m+0.62 D. F(m)=(39+0.62)m - Answer- A You just started a lawn company. You spent $200 in initial costs, and you earn $150 per month. Which function can be used to predict your profit after x months? A. F(x)=150x+200 B. F(x)=200x-150 C. F(x)=200x+150 D. F(x)=150x-200 - Answer- D Which represents the inputs and outputs of a function? A. Input: Number of vacation days; Output: Annual salary B. Input: Speed of car; Output: Distance traveled in one hour C. Input: Scores on an algebra assignment; Output: The number of students in an algebra class D. Input: The number of the news channel; Output: The number of TV shows on at 7:00 p.m. - Answer- B Which variable is a qualitative variable? A. Your child's name B. Your shirt color C. Your salary D. Your bank account number - Answer- B A cell phone company charges a fee of $90 per month of service. A customer's cost, C, for service can be represented by the function C(m)=90m, where m represents the number of months. Find the total cost for six months of service. A. $5,400 B. $90 C. $540 D. $96 - Answer- C The output of toy cars in a toy factory is affected by the number of employees working per shift.