Algebra 1 STAAR Practice Cat 3

A student worked out at a gym continuously for 50 minutes. The graph shows the remaining percentage of the workout as a linear function of x, the time in minutes.

Which answer choice best describes the domain and range of the function for this situation?

• Domain: All real numbers greater than or equal to 0 and less than or equal to 100.

  Range: All real numbers greater than or equal to 0 and less than or equal to 50.

• Domain: All real numbers greater than or equal to 0 and less than or equal to 50.

  Range: All real numbers greater than or equal to 0 and less than or equal to 100.

A grill at a barbecue restaurant will be used to cook sausage links that are 2 lb each and briskets that are 6 lb each. No more than 120 lb of sausage links and briskets will be cooked on the grill.

Which inequality represents all possible combinations of x, the number of sausage links that will be cooked on the grill, and y, the number of briskets that will also be cooked?

The graph of a linear function is shown on the grid.

Which equation is best represented by this graph?

A college student completed some courses worth 3 credits and some courses worth 4 credits. The student earned a total of 59 credits after completing 18 courses.

How many courses worth 3 credits did the student complete?

• 13

• 5

• 20

• 39

A system of equations is graphed on the grid.

Which system of equations does the graph represent?

The table shows the amount of pet food in cups remaining in an automatic feeder as a function of the number of meals the feeder has dispensed.

Based on the table, which function models this situation?