AR STAAR Cumulative Review

An athlete ran at a constant speed for 12 seconds. The part of the linear function shown represents the distance the athlete ran in yards, y, as a function of the time in seconds, x.

What is the domain of the function for this situation?

A part of a linear function is shown on the grid.

What is the range of the part shown?

The range is the set of all real numbers ​ ​ (a)   and ​ (b)  

• greater than -4
• less than or equal to 2
• greater than or equal to -4
• less than 2
• greater than or equal to -2
• less than 3

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The graph of a linear function is shown.

Which function best represents the relationship shown in the graph?

The table represents some points on the graph of a linear function.

Which function represents this relationship?

A line is graphed on a coordinate grid.

Which statement about the line is true?

The altitude of an airplane is changing at a constant rate. The table shows the linear relationship between y, the altitude of the airplane in feet, and x, the time in minutes.

Complete the statement that describes the rate of change of the altitude of the airplane with respect to time.

The altitude of the airplane ​ (a)   at a rate of ​ (b)   feet per minute.

• decreases
• 3,000
• 25,500
• increases

The water level in a tank is changing at a constant rate. The graph shows the relationship between time in hours, x, and the water level in meters, y.

Complete the statement that describes the rate of change of the water level with respect to time.

The water level ​ (a)   at a rate of ​ (b)   m/h.

• decreases
• 0.25
• 1
• 4
• increases

A construction worker built steps up to a home. The table shows the linear relationship between the height of the ground in inches and the number of steps.

What is the rate of change of height off the ground with respect to the number of steps?

• 14 in. per step

• 7 in. per step