Equations from Graphs

Line A represents the equation y = 5x. Line B represents the equation y = x + 5. Which statement best describes the relationship between line A and line B?

• Line A will always be greater than line B.

• Line A and line B start at the same point.

• Line A increases more rapidly than line B.

• Line B increases more rapidly than line A.

The table below shows the relationship between the number of miles traveled and the number of gallons of gas used. Which of the following statements best represents the relationship?

• The number of miles is the dependent quantity and the number of gallons is the independent quantity.

• The number of miles and the number of gallons are both dependent quantities.

• The number of gallons and the number of miles are both independent quantities.

• The number of miles is the independent quantity and the number of gallons is the dependent quantity.

What is the y-intercept in this graph?

• 4

• -4

• 2

• -2

What is the y-intercept in this graph?

• 1

• 2

• -1

• -2

What is the slope in this graph?

• 2/3

• 3/2

• 2

• 3

What is the slope in this graph?

• 5

• 2

• 5/2

• 100

What is the correct equation for this graph?

• x=2y+2

• y=3x+1

• x=2y+4

• y=2/3x+1

What is the correct equation for this graph?

• y=3x+2

• y=5/2-4

• y=2/3x-9

• y=2x+5

What is the correct equation for this graph?

• y=1/2x+4

• y=2/2x+4

• y=3/2x+4

• y=4/2x+4

• y=1/2x+3

• y=1/2x+1

• y=1/2x-3

• y=1/2x-1