Intro to Constant of Proportionality

Which equation could represent a proportional relationship?

• $y=4x\ +\ 10$

• $y=10\ +\ x$

• $y=44\ -x$

• $y=4x$

Does this table represent a proportional relationship?

• Yes

• No

Which graphs represent proportional relationship? (Pick TWO!)

• Graph A

• Graph B

• Graph C

• Graph D

What is the constant of proportionality on this table?

• 0

• 1

• 3

• 9

Does this table represent a proportional relationship?

• Yes

• No

Which equation would represent this proportional relationship?

• $y=5x$

• $y=3x$

• $y=x\div5$

• $y=x\div3$

Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

The constant of proportionality in the equation y = ½x is _______. 

• x
• y
• 1/2
• 2

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

• Yes; 1/3
• Yes; 3
• Yes; 5
• No

What makes a graph proportional?

• Straight line
• The line goes through the origin
• Curvy line
• Straight line and the line goes through the origin