Mock STAAR Review

Order the real numbers below from least to greatest.

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A bookshelf contains 15 books that each have the same width. The combined width of all 15 books (x axis) is 12 inches (y-axis). Select two points on the graph that can represent this proportional relationship.

An aquarium is being filled with water. The graph shows the height of the water over time as the aquarium is being filled.

Which statement best describes the rate of change for this situation.

• The height of the water increases 20 inches per second.

• The height of the water increases 1 inch per second.

• The height of the water increases 5 inches per second.

• The height of the water increases 2.5 inches per second.

What is the y-intercept of the function?

Mathematical Equivalence

ON

The slope of the graph is ​ (a)  

• 4
• -4
• 6
• -6

Drag and Drop the correct answers into the blank spaces. Josh is saving money to buy a computer. He put the initial amount he has saved into a jar. Each month he puts additional money into the jar. The table shows the linear relationship between the number of months Josh has added money to the jar, x, and the total amount of money in the jar, y. Based on this table, the initial amount Josh put in the jar was $ (a)   and the amount Josh adds to the jar each month is $​ (b)   ​.

• 60
• 45
• 220
• 225
• 75
• 30

What are the slope and y-intercept of the linear function on the graph? Choose all answer that apply.

• y-intercept = -1.5

• Slope = -4

• Slope = - 0.25

• y-intercept = -6

Which graph does not represent y as a function of x? HInt: Use the vertical line test

Organize these options into the right categories

Groups:

(a) y as a function of x

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(b) y is NOT a function of x

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Locate two points on the graph that represents the equation y = - 1.5x + 4. Hint: draw a table of values