Wednesday Wrap Up

Which equation matches this situation?
Diego is saving money for concert tickets to Melanie Martinez, after mowing lawns he has a $120. He already has $46 saved and earned $15 per lawn.

• 46 + 15x = 120
• 15x + 46 = 120
• 120 = 46x - 15
• 120 = 46x = 15

Write a linear equation in the form of y=mx+b

• y = 3x + 5

• y = 2x + 5

• y = 5x - 2

• y = -3x + 5

What type of relationship is a direct variation.

• proportional

• non-proportional

Suppose y varies directly as x. If y = 3 when x = 15, find x when y = 5.

• 25

• 17

• 9

• 1

Suppose y varies directly as x. If y = 3 when x = 15, find x when y = 5.

• 25

• 17

• 9

• 1

• Function
• Not a Function

• Function

• Not a Function

Is this graph a function or not a function? 

• Function 
• Not a Function

Does the equation show a proportional relationship?

• Yes
• No