Graphing in a Variety of Contexts — Unit test Answers

The equation of the line that passes through points and is shown below. What value is missing from the equation?y =

This function models the relationship between the hours worked, x, and the amount of money earned, f(x). Which choices could be elements of the domain of the function? Check all that apply.

Which equation represents a line with a slope of zero?

What are the slope and the y-intercept of the linear function that is represented by the table?xy–1003

The local theater sells tickets to its plays at a rate of $38 each. Patrons who attend multiple shows are encouraged to buy an annual membership for $80. Members are able to buy tickets at a discounted rate of $20 each. Roger expects to attend 6 shows this year. Grace expects to attend 4 shows. Who would benefit from buying a membership this year?

What is the y-intercept of a line that has a slope of –3 and passes through point (–5, 4)?

The number of pounds of dog food that a pet store has is represented by the equation , where x represents the number of days that the store is open and y represents the pounds of dog food in stock in the store. How many pounds of dog food will the pet store have after 21 days?