STAAR Review

What is the slope of the equation that represents the table?

• -1.5

• 0.5

• 2

• -3

An r value of 0.2156 represents

• A strong, positive, linear correlation.

• A strong, negative, linear correlation.

• A weak, positive, linear correlation.

• A weak, negative, linear correlation.

A line is graphed on a coordinate grid. Which statement about the line is true?

• The equation of the line is x = -4, and the slope is undefined.

• The equation of the line is y = -4, and the slope is equal to -4.

• The equation of the line is x = -4 and the slope is equal to -4.

• The equation of the line is y = -4, and the slope is undefined.

What is the solution to the equation below:

3x - 5 = -8(6 + 5x)

• x = -1

• x = 1

• x = 0

• x = 2

A line contains the points (-2, -2) and (4, -8). What is the slope of the line?

What is the solution to the equation:

• x = -1

• x = 0

• x = 2

• x = -3

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. What is the equation that represents the scenario?

• 12g (2h - 12g + 18)

• 6g (4h - 12g + 18)

• 12g (2h - 9 + 3)

• 6g (4h - 2g + 3)

A construction worker built steps up to a home. The table shows the linear relationship between the height off 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? Enter your answer as a number.

• 7 inches per step

• 5 inches per step

• 10 inches per step

• 3 inches per step

What is the solution to the equation:

• x = 2

• x = 1

• x = -1

• x = 3