Finding the Relationship of an Equation from a Graph or Table

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

Write an equation for this relationship.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

Is this table proportional?

• Yes

• No

Determine the missing value in the table.

• 15

• 3

• 1/3

• 9

Based on the constant of proportionality from the table, how much money would be earned if 5 phones were sold?

• $43

• $215

• $210

• $200

Which equation represents the line graphed? (Click on the image to enlarge)

• y = -x + 18 

• y = x + 18

• y = -2x + 18

• y = -18x + 9 

What equation represents this graph? (Click on the image to enlarge)

• y = 60x

• y = 40x

• y = 80x

• y = 20x

What is the equation of the table? (Click on the image to enlarge)

• y = -2 + x

• y = x + 3

• y = x - 3

• y = x - 2

Which equation best represents the relationship between x and y in the table shown?

• y= 5x+5

• y=1/5x+5

• y=15x+5

• y=10x+5

Which equation matches the table?

• y = x + 5

• y = 5x

• y = x - 5

• x = y - 5