Chapter 3 Review (Math-8)

What is the constant rate of change between the values of x and y in the table below.

• -1/4
• 4
• 1/4
• -4

What is the constant rate of change between the values of x and y in the table below?

• -1/2
• 1/2
• 2
• -2

Find the slope of the line that passes through (3,6) and (-3,1)

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What is the slope of the line that passes through the points C(2, -1) and D(-1, 1)

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The costs of cookies at store A are shown in the graph below. The cost y for x cookies at store B is represented by the equation y = 0.30x. Which of the following statements is true?

• The cookies at store A cost more.
• The cookies at store A cost $0.50 each
• The cookies at store B cost $0.15 each
• The cookies at store B cost more

What are the slope and y-intercept for the graph of y = 4x - 1?

• slope: -4 y-intercept: -1
• slope: -4, y-intercept: -1
• slope: -4 y-intercept: 1
• slope 4 y-intercept: -1

Which is the equation in slope-intercept form for the graph of the line below?

• y = 2x + 4
• y = -2x - 2
• y = -2x + 4
• y = -2x - 4

Cylus is having his birthday party at a water park. The park charges $100 plus $8 per guest. The total cost of the party y can be represented by the equation y = 8x + 100. What does the slope represent?

• the number of guest
• the cost to rent the water park
• the cost per guest
• Cylus's age

What are the x- and y-intercepts for the graph -2x + 5y = 10?

• x-intercept: -5, y-intercept: 2
• x-intercept: -5, y-intercept: -2
• x-intercept: 5, y-intercept: -2
• x-intercept: 5, y-intercept: 2

What is the slope of the line that passes through the points C(-4, -2) and D(1, 1)?

• -5/3
• -3/5
• 3/5
• 5/3