Interpret Slope and Y-Intercept in a Situation

The height (H in inches) of a candle is represented by the linear function: H(t)=-0.25t+6, where t represents the time passed in hours. What is the meaning of the slope?

• The height of the candle will decrease by 0.25 inches per hour

• The height of the candle will increase by 0.25 inches per hour.

• The candle is 6 inches tall before it is lit. 

• The candle is 0.25 inches tall before it is lit. 

The height (H in inches) of a candle is represented by the linear function: H(t)=-0.25t+6, where t represents the time passed in hours. What is the meaning of the y-intercept?

• The height of the candle will decrease by 0.25 inches per hour

• The height of the candle will increase by 0.25 inches per hour.

• The candle is 6 inches tall before it is lit. 

• The candle is 0.25 inches tall before it is lit. 

The height (H in inches) of a candle is represented by the linear function: H(t)=-0.25t+6, where t represents the time passed in hours. How long will it take until the candle is completely burned out?

• 22 hours

• 23 hours

• 24 hours

• 25 hours

What is the meaning of the slope?

• You will receive $4 per paper delivered.

• You will receive $5 per paper delivered

• You will receive $20 per paper delivered

• You will receive $20 for the day

What is the meaning of the y-intercept? (Hint: what would the amount be for 0 hours?)

• The cost will increase by $12 per hour

• The initial fee is $15 before hourly charges

• The cost will increase by $15 per hour

• The initial fee before hourly charges is $12

What is the meaning of the y-intercept?

• Colby's initial deposit was $100. 

• Colby's initial deposit was $150

• Colby is adding $5 per week

• Colby is adding $10 per week

What is the meaning of the y-intercept?

• The cost for the service without any hours of calling is $5

• The cost of the service without any hours of calling is $6

• The cost per minute is $0.05

• The cost per minute is $0.50

What is the meaning of the slope? 

• Colby's initial deposit was $100. 

• Colby's initial deposit was $150

• Colby is adding $5 per week

• Colby is adding $10 per week

Bob has $150 in his savings account and saves $40 per month.

• y=150 + 40

• y=40x + 150

• y=150x + 40

A T-shirt design company charges your team a startup fee of $25 to create the team's design. Each t-shirt printed with your design costs an additional $8. The equation for this situation is y = 8x + 25. Interpret the y-intercept in context.

• The additional fee of $8.

• The starting fee of $25.

• The additional fee of $25.

• The starting fee of $8.