Unit 2B Review

What is the slope of the line in the graph above?

What is the line's y-intercept?

Rearrange the standard form equation below into slope-intercept form:

-6x - 3y = 12

If f(x) = 3x + 17, then what is f(2)?

Apolline is mowing lawns for a summer job. For every mowing job, she charges an initial fee plus a constant fee for each hour of work. Her fee for a 5-hour job, for instance, is $42. Her fee for a 3-hour job is $28.

Let y represent Apolline's fee (in dollars) for a single job that took x hours for her to complete.

If this situation was graphed, what would the slope be?

Apolline is mowing lawns for a summer job. For every mowing job, she charges an initial fee plus a constant fee for each hour of work. Her fee for a 5-hour job, for instance, is $42. Her fee for a 3-hour job is $28.

Let y represent Apolline's fee (in dollars) for a single job that took x hours for her to complete.

If this situation was graphed, what would the y-intercept be?

A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. When he started his diet, he weighed 79.5 kilograms. He gained weight at a rate of 5.5 kilograms per month.

Let y represent the sumo wrestler's weight (in kilograms) after x months.

Which of the following could be the graph of the relationship?

Explain how you know that your answer to question 7 is correct

A charity organization had to sell 18 tickets to their fundraiser just to cover necessary production costs. They sold each ticket for $45.

Let y represent the net profit (in dollars) when they have sold x tickets.

What is the x-intercept?