Math 8 Unit 5 Interim Review

This function neither increases nor decreases from -5 to -4, increases from -4 to -1, decreases from -1 to 1, then increases from 1 to 5. Which graph could represent this function?

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Which choice represents a non-linear equation?

A linear function is graphed on the coordinate plane. Which set of ordered pairs represents a linear function with a slope that is less steep than the graphed function?

• (-3,13) and (4,-15)

• (-2,7) and (-1,5)

• (−6,20) and (2,−4)

• (−4,18) and (3,−17)

The table below shows the relationship between the variables of a linear function. What is the rate of change of the function?

Mathematical Equivalence

ON

A student rides a bike to the grocery store, shops, and then returns home. The graph illustrates the distance the student is from home in relation to time, broken into four different phases.

Which statement best describes PHASE 3 of the graph?

• The student arrives and shops at the grocery store.

• The student decreases the bike speed significantly.

• The student returns home.

• The student rides the bike at a constant speed.

Which table does not represent a function?

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• Carl's walking speed is 1 mph greater than Chin's.

• Carl's walking speed is 1 mph greater than Chin's.

• Carl's walking speed is 2 mph greater than Chin's.

• Chin's walking speed is 2 mph greater than Carl's.

Which set of ordered pairs represents a linear relationship?

• {(5,4), (9,0), (9,-3), (0,11)}

• {(2,5), (11,-3), (2, 0), (6,1)}

• {(-1,3), (-2,3), (4,5), (9,0)}

• {(0,11), (0, 22), (4,5),(-4,6)}

Which represents the equation of a line passing through the points (7,8) and (2,10)?

A function is graphed in the coordinate grid. Which best describes the function from x=4 to x=8?

• linear and increasing

• linear and decreasing

• non-linear and increasing

• non-linear and decreasing