STAAR Review

Which function is best represented by this graph?

• y = ¼ x + 8

• y = ¼ x – 2

• y = 4x -2

• y = 4x + 8

A gym charges a membership fee plus an additional fee per yoga class. The table shows the linear relationship between the number of yoga classes taken and the total cost including the membership fee. Which statement is true?

• The additional fee per yoga class is $3.75

• The additional fee per yoga class is $8.25

• The membership fee is $35.00.

• The membership fee is $42.50.

Which representation shows y as a function of x?

• 
• 
• 
• 

A company sells bottles of vitamin capsules. The graph and table show the linear relationship between the cost per capsule in cents and the number of bottles ordered.

What is the slope of the line that models this situation?

• -5

• 5

• 65

• 70

Which best describes this equation?
y= 3.75x + 2

• Proportional 
• Non-proportional

Is the graph proportional or non proportional?

• proportional
• non-proportional

Which best describes the graph represented in this table?

•  proportional
• non-proportional

What is the y-intercept for the following table and is it proportional or non-proportional?

• Proportional, y-intercept is 0
• Non-proportional, y-intercept is 6
• Proportional, y-intercept is undefined
• Non-proportional, y-intercept is 3

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

• Function
• Not a Function