Equations of Lines in Context

What is the y-intercept of this graph?

What does the y-intercept represent in this situation, beginning at 9 am?

• The temperature is 35 degrees at 9 am.

• The temperature is rising 10 degrees per hour.

• The temperature is 35 degrees at midnight.

• The temperature is rising 1 degree per hour.

• The temperature is rising 35 degrees per hour.

Which function models this graph?

• y = 35x + 1

• y = 35x + 10

• y = 10 x + 35

• y = 1x + 35

What is the slope of this graph?

What does the slope represent in this situation?

• $40 per week spent on candy

• $1 spent every 2 weeks on buying candy

• $40 he started with before buying candy

• $2 spent per week to buy candy

What is the y-intercept?

What does the y-intercept represent?

• $40 lost buying candy

• 40 weeks of losing money by buying candy

• $40 in the saving account when he started buying candy

• $2 lost per week from savings to buy candy

When will he run out of money?

What is the slope?

What does the slope represent in this context?

• Hank gains 158 pounds per week.

• Hank has a starting weight of 158 pounds.

• Hanks gains 1.5 pounds per week.

• Hank loses 1.5 pound per week.

• Hanks now weighs 156.5 pounds.