Unit 2 Test Points Recovery

What is the domain of the relation {(-10, 5), (-5, 0), (0, 0), (5, 0), (10, 5)}?

• {0, 5}

• {-10, -5, 0, 5, 10}

• {-5, 0, 5}

• {0}

Using the vertical line test, which graphs are functions? Choose all that apply.

• 
• 
• 
• 

From the table, y varies directly with x. What is the function equation?

The amount of money raised at a fundraiser is directly proportional to the number of attendees. The amount of money raised for 25 attendees is $500. How much money is raised for 75 attendees?

Determine if the equation represents a direct variation. If so, find k.

2y = 7x + 4

• Yes, k = 7/2

• Yes, k = 2/7

• Yes, k = 2

• Not direct variation

• Slope: 1, Y-intercept: -10
• Slope: 2, Y-intercept: 10
• Slope: 2, Y-intercept: -10
• Slope: -2, Y-intercept: -5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

• Slope: -3/4, Y-intercept: 4
• Slope: 0, Y-intercept: 4
• Slope: 3/4, Y-intercept: 6
• Slope: 1, Y-intercept: 24

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

A line passes through the points (3, 7) and (6, 13). What is an equation of the line in point-slope form? Select all that apply.

• y - 7 = -2(x - 3)

• y - 7 = 2(x - 3)

• y - 13 = 2(x - 6)

• y - 7 = 1/2(x - 3)

• y - 13 = 1/2(x - 6)

What are the intercepts of 6x + 2y = 48?

x-intercept: (_,_), y-intercept: (_,_)

What is the equation of the line in slope-intercept form that passes through (-8, -2) and is perpendicular to 2x + 4y = 12?

• y = -2x - 6
• y = -0.5x + 1
• y = 2x + 14
• y = 4x - 30