Find Equation in Graphs and Tables

Which of the following is an equation for this relationship?

• y=90x

• y=25x

• y=45x

• y=2x

What is the constant of proportionality for the following graph?

• 80

• 20

• 40

• 160

Identify the constant of proportionality. Write your answer as y=kx

• y=14x

• y=7x

• y=2x

• y=6x

Determine the missing value in the table.

• 15

• 3

• 1/3

• 9

Based on the graph, Which of the following statements is TRUE?

• I drove 80 miles every 4 hours

• I drove 160 miles in an hour

• I drove 80 miles every 2 hours

• I drove 240 miles in 4 hours

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked
  is the unit rate

• $500 is earned for every 8 hours worked

• $300 is earned after working 4 hours

Write the equation for the proportional relationship.

• y = 2 x

• y = 1x

 Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

What is the constant ratio or constant of proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Does the table represent a proportional relationship?

• Yes.

• No.