ALG1 STAAR Prep

(2023.1) The table represents some points on the graph of a linear functions.

Which function represents this relationship?

(2023.2) 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.

Move the correct answer to each box. Not all answers will be used.

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

• decreases
• 0.25
• increases
• 1
• 4

(2023.3) The graph of quadratic function h is shown.

Which function best represents h?

(2023.4) A rectangle has a length of (5 + 2x) inches and a width of 10 inches. A triangle has a base of 30 inches and a height of (4x - 10) inches. The area in square inches of the rectangle is equal to the area in square inches of the triangle.

What is the value of x?

• 2.5

• 3

• 7.5

• 5

(2023.6) The table shows the number of species added to the United States endangered species list each year for several years. A linear function can be used to model the data.

Which correlation best describes the strength of the linear association between the number of species added to the United States endangered species list and the year?

(2023.7) A part of a lienar function is shown on the grid.

What is the range of the part of the linear function shown?

Choose the correct answer from each drop-down menu to complete the sentence.

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

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

• y
• 0
• x
• 0.75
• 12
• 16