Unit 5 & 6 Quiz

Which graph correctly represents the information from the table?



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• 
• 

What is the slope of the line that passes through the points (7, -1) and (7, 4)?

• -5

• 0

• 5

• undefined

Which correctly describes the behavior of the graph y = 3x in the xy-plane?

• The graph is a vertical line.

• The graph is a horizontal line.

• The graph is rising as x increases.

• The graph is falling as x increases.

What is the slope of the line on the graph below?

• -3

• -1/3

• 1/3

• 3

The tables show telephone charges for different companies. Which table shows a linear relationship between the length of the call and the cost?

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• 
• 

What is the slope of the equation y = -4x + 5

• 5

• 4

• -4

• undefined

What is the equation of this table?

• y = x + 3

• y = x + 4

• y = 3x

• y = 3x + 2

The graph of y = 2x + 2 is shown.

What coordinates identify the y-intercept of this graph?

• (0,5)

• (1,1)

• (0,2)

• (5,0)

The graph below shows the relationship between the number of hours Carlo works and the amount of money he earns at his job.

Which of the following equations best represents this graph?

• y = 10x

• y = 5x

• y = 30x

• y = 7.5x

A phone company offers a cell phone plan for a monthly fee of $19.95 plus $0.05 for each minute used during the month. Which equation below best represents the cost, y, for one month when x minutes are used?

• y = 0.05x

• y = 0.05x +19.95

• y = 19.95x

• y = 19.95x + 0.05