Constant Proportionality on Tables, Equations, and Graphs

y = x - 6
What is the missing number?

• 12

• 10

• 14

• 13

What is the function of the table?

• y=3x+1

• y=4x-2

• y=x+1

• y=x+7

What is the equation of the line?

• y = 20x

• y = x + 20

• y = 2x

• y = x + 2

You earn $18 for every hour you work. Which equation represents this function?

• y=(18/2)x + 0

• y = 18x

• y = 2x + 18

• y = 18x + 2

Write an equation for this relationship.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

Choose the best explaination

• Taylor can write 6 words per minute

• Taylor can write 25 words per minute

• Taylor can write 50 words per minute

• Taylor can write 150 words per minute

You are visiting Houston, Texas and a taxi cab company charges a flat rate of $4.00 for using the cab and $0.95 per mile.  Write an equation to determine the cost when x miles is driven.

• y = .75x

• y = .95x

• y = .95x + 4

• y=4.95x

Use the table to solve for the constant of proportionality.

• 3

• 6

• 2

Use the graph to determine how many pounds of chicken salad you can buy for $52.50.

• 5 lbs

• 6 lbs

• 7 lbs

• 8 lbs

The table shows John's wages based on the number of hours he works. What equations would be used for the table? Use h for hours and d for dollars

• d = 9h

• h = 9d