linear Equation and Proportional

What is the unit rate in this proportional relationship?

• 60 miles/1 hour
• 120 miles/ 2 hours
• 1 mile/ 1 hour

Does this graph represent a proportional relationship?

• Yes
• No

Using the table above, determine the equation of the line.

• y = 5x
• y = 10x
• y = 1/5 x
• y = 1/10 x

Does this graph represent a proportional relationship?  

• No, because it doesn't pass through the origin.
• Yes, because it doesn't pass through the origin.
• Yes, because it intersects the y axis.
• No, because it intersects the x axis.

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9
• x = 3

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.