7th Grade Math Quiz

y=kx.  What does the k represent?

• constant of proportionality
• multiplier
• scale factor
• all of these are correct

Which best describes the graph represented in this table?

•  proportional
• non-proportional

Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

What is the equation?

• y=x/4
• y=4x
• y= x + 4
• y = x - 4

What is the constant of proportionality?

• $3
• $4
• $2
• $9

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

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

• y = k+x
• y = k-x
• y = kx
• y = k/x