Tables, Graphs, Equations, Slope, Y-Intercept

Which equation matches the graph?

• y = 60x

• y = 40x

• y = 80x

• y = 20x

What is the slope in the equation y=2x + 3?

• 2

• 3

• 5

• Cannot be Determined 

What is the y-intercept in the equation y= -2x + 5

• -2

• 3

• 5

• Cannot be Determined

Which equation matches the table? 

• y = x + 4

• y = 5x

• y = x - 4

• y = x + 16

What is the equation?

• y=-2x

• y=-4x+2

• y=2x-4

• y=-2x-4

Amber receives $10.50 each week. Which equation can be used to find the number of weeks, x Amber must save her money in order to buy an Ipad that costs $300?

• 10.50x = 300

• 10.50 + x = 300

• x÷300 = 10.50

• x÷10.50 = 300

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.

Find the rate of change

• 1

• 2

• 11

• 0

Is this a proportional equation?  Why?

• It is not proportional because it doesn't have a constant.

• It is not proportional because it doesn't have a constant rate of change.

• It is proportional because if x = 0, y = 0.

• It is proportional because it has a y intercept of 22.

The slope of this line is...

• positive

• negative

• zero

• undefined