(2.8) Understand the y-Intercept of a Line

What is the y-intercept of the graph?

• 0

• 2

• 4

• 8

The graph shows the rate of a scuba diver's ascent to the surface. What does the y-intercept of the graph represent?

• The scuba diver ascended at a rate of 10 meters per minute.

• The scuba diver started her ascent at the surface of the water.

• The scuba diver ended her ascent 35 meters below the surface of the water.

• The scuba diver was 35 meters below the surface of the water at the start of the ascent.

Which statement(s) could describe the graph of a non-proportional relationship? Select all that apply.

• The y-intercept is positive.

• The line intersects the origin.

• The y-intercept is zero.

• The y-intercept is negative.

Which graph has a y-intercept of (-1/2)?

• 
• 
• 

Jana earns $25 per week for mowing the lawn and deposits the money into her savings account. The amount of money in Jana's account can be represented by the equation y = 25x + 125, where x is the number of weeks she has been mowing the lawn. What does the y-intercept of the graph represent in this situation?

• the amount of money Jana has after she mows 5 lawns.

• the amount of money Jana earns mowing each lawn.

• the amount of money in Jana's account before she began mowing lawns.

• the amount of money Jana deposits into her savings account after 1 week of mowing lawns.

_{What are the coordinates of the y-intercept of the line?}

• (-1, 0)

• (-1, -3)

• (1, 1)

• (0, -1)

What is the y-intercept of the line graphed below?

• 3

• 4

• -3

• 4/3

What is the y-intercept of the line graphed below?

• -1

• 3

• -3

• -2

What is the y-intercept of the line graphed below?

• 2

• 3

• 4

• -2

What is the y-intercept of the line graphed below?

• 2

• 3

• 4

• -3