Constant of Proportionality

Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

Identify the constant of proportionality.

• k = 6

• k = 12

• k = 1/6

• k = 1/12

• none (not proportional)

Write the equation for the table given.

• y = 1/3x
• y = 3x
• y = 1/2x
• y=x

Identify the constant of proportionality.

• k = 5

• k = 1/5

• k = 1

• k = 2.5

• none (not proportional)

Is the graph proportional or non proportional?

• proportional
• non proportional

What makes a graph proportional? Select two answers.

(a)   ​ ​​ (b)  

• straight line through point of origin (0, 0)
• has a constant of proportionality
• a line that connects the dots
• has x-axis and y-axis

A proportional relationship can be written as an equation in the form =  ​ ​

• y = k+x

• y = k/x

• y = kx

What is the constant of proportionality for this table?

• $1/9 per hour
• $9 per hour
• $8 per hour

Does the table show a proportional relationship?

• No

• Yes

Does the table show a proportional relationship?

• No

• Yes