8.4 B, C Slope & Y=Mx+b

Gwen spent $12.50 to purchase 5 bracelets. Each bracelet cost the same amount. Which graph has a slope that best represents this rate?

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Rhonda's job is to drive a car for a company. Each month she is paid the same salary. She is also paid extra money for the number of miles she drives the car each month. (a)  

• y= 5.47x
• y= 4.39x
• y= 0.55x + 3,150
• y= 3,150x + 0.55

A company is drilling a water well. The graph models the linear relationship between the depth of the well and the time spent drilling. Which function best represents the relationship between y and x?

Dina withdraws the same amount from her bank account each week. The graph below shows the balance in her account over a period of 4 weeks. What was the starting balance in her account, at Week 0?

What is the slope of the line?

• 6/1
• 6
• 1/6
• -1/6

Identify the slope of the following graph.

• Positive

• Negative

• Zero

• Undefined

Determine the slope. 

• -5
• 5
• -1/5
• 1/5

Find the slope

• -5/3
• -3/5
• 5/3
• 3/5

Which equation matches the table?

• y = x 
• y = 5x
• y = x - 4
• y = x + 4

What is the slope of this equation? 
y = 3x - 4 

• 3
• -4
• 3x
• 4