Finding the Constant Proportional Relationships Recognition

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

Write the equation for the table given.

• y = 1/3x

• y = 3x

• y = 1/2x

• y=x

What is the constant of proportionality?

• 3

• 4

• 2

• 1

• 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

Find the constant rate of change for this graph.

• 2 lb per person

• 1 lb per person

• 3 lb per person

• 4 lb per person

What is the constant rate of change?

• Not here.

• $80 per month.

• $82 per month.

• $41 per month.

• y = 1/5x

• y = 5x

• y = 1/2x

What is the constant of proportionality? Use the format k = 2.

Is the graph proportional?

• Yes

• No

What is the constant of proportionality?

• k = 3

• k = 1/3

• k = 3x

• k = 1/3x