Interpret Slope Intercept Form

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. 

Janice is saving money for retirement. The equation y = 500x + 12,000 models her retirement savings where y is the total she has saved in dollars, and x is the number of months. Interpret the y-intercept.

• Janice started with $500 in her account

• Janice started with $12,000 in her account

• Each month, Janice saves an additional $500

• Each month, Janice saves an additional $12,000

What is the correct equation in 
Slope-Intercept Form?
(y = mx +b)

• y = 1/3x - 1

• y = 1/4x -1

• y = -1/3x +1

• y = -1/4x + 1 

What is the correct equation in 
Slope-Intercept Form?
(y = mx +b)

• y = x

• y = x + 1

• y = -x 

• y = -x + 1

What is the correct equation in 
Slope-Intercept Form?
(y = mx +b)

• y = 3x - 3

• y = 3x - 1

• y = -3x - 3

• y = -3x - 1 

What is the correct equation in
Slope-Intercept Form?
(y = mx +b)

• y = -1/3x + 3

• y = 1/3x - 3

• y = -1/3x - 3

• y = 1/3x + 3 

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.

What is the rate of change for the equation y= 5x - 2

• -2/5

• 5/-2

• 5

• -2

State the slope, y-intercept, and equation in slope-intercept form:

m: ​ (a)  

b: ​ (b)  

equation: ​ (c)  

• 7
• -2