Math 8 Interim 3 Review

Which of the following is a true statement about the graph?

• The graph shows a function of x.

• The graph does NOT show a function of x because the points are non-connected.

• The graph does NOT show a function of x because there are multiple points with the same y-coordinate.

• The graph does NOT show a function of x because there are multiple points with the same x-coordinate.

Which set of ordered pairs below is a function?

I. {(1, 2), (4, 5), (7, 2)}

II. {(3, 6), (1, 7), (3, 2)}

III. {(8, 5), (2, 1), (6, 2)}

• I only

• II only

• III only

• I and III

Tags

CCSS.8.F.A.1

Based on the information given, which plane will reach 100 miles first?

• Arnie's Airplane (graph)

• Bernie's Biplane (table)

Tags

CCSS.8.EE.B.5

What is the difference, in dollars, between the personal cheese pizzas at both stores with 0 additional toppings?

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Which of these linear functions has a lesser rate of change than a linear function with a slope of 7 and a y-intercept of 9? Select three that apply.

• y = 5x + 2

• y = 7x + 4

• y = 2x + 8

• y = 9x + 1

• y = 6x + 3

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

This graph represents the relationship between x and y.

Which statements are true of this relationship? Select TWO that apply.

• The equation y = 1/2x + 1 models the relationship.

• The equation y = -1/2x + 1 models the relationship.

• The equation y = -2x + 1 models the relationship.

• The relationship between x and y is a linear function.

• The relationship between x and y is not a linear function.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which functions are nonlinear? Select TWO that apply.

• y = -3

• y = x/2 + 5

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Tags

CCSS.8.F.A.3

A hot air balloon was flying at an altitude of 500 meters when the pilot decided to land by descending at a rate of 5 meters per second. For which of these functions does y represent the altitude of the hot air balloon if x represents the number of seconds since the pilot started her landing?

• y = 5x + 500

• y = 5x - 500

• y = -5x + 500

• y = -5x - 500

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which statement is true regarding Gil's morning walk?

• Between 0 and 9 minutes, Gil's distance from home stays constant.

• Between 9 and 15 minutes, Gil's distance from home is increasing.

• Between 15 and 21 minutes, Gil's distance from home is 0 miles.

• Between 21 and 30 minutes, Gil's distance from home is increasing.

Tags

CCSS.HSF.IF.B.4

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