Comparing Functions in the Real World — Unit test Answers

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

What can be concluded about a line that passes through the points and ? Check all that apply.

A line has a slope of and passes through point . What is the equation of the line?

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

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?

For spring cleanups, a landscaper charges a flat fee of $60 plus $20 for each hour of labor. Which equation models the cost in dollars, c, for a cleanup that requires h hours of labor?

Jill converted the equation of the line into slope-intercept form and found the slope and y-intercept of the line as follows.What was her mistake?