STAAR Assessment 7

Triangle MNP and triangle JKL are similar right triangles. Which proportion can be used to show that the slope of JL is equal to the slope of MP?

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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

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?

• ¹/₅

• -¹/₅

• 5

• -5

Which function is best represented by this graph?

• y = ¹/₄x + 8

• y = ¹/₄x - 2

• y = 4x - 2

• y = 4x + 8

The ticket sales for a concert started at 4:00 p.m. The table shows the linear relationship between the number of tickets remaining and the number of hours since 4:00 p.m.

Which function can be used to find y, the number of tickets remaining x hours since 4:00 p.m.?

• y = 3,000x + 12,000

• y = 3,000x + 15,000

• y = -3,000x + 12,000

• y = -3,000x + 15,000