Unit 9 BR #1 Mathematical Reasoning

Which type of graphs can be straight line graphs?

• Inverse proportional graphs

• Directly proportional graphs

• Non-proportional graphs

• Exponential graphs

What is the mathematical equation that describes two variables that are directly proportional?

How do the variables in a direct proportion influence each other?

How are y and x related?

• The value of:

  y = increases

  x = increases

• The value of:

  y= decreases

  x= decreases

• The value of:

  y= increases

  x= decreases

• The value of:

  y=increases

  x= remains constant

What type of character does a directly proportional graph have?

• Linear
• The line is only in quadrant 1
• Curvy line
• Linear and the line goes through the origin

What is inverse proportion?

• When one quantity increases, the other quantity also increases.

• When one quantity increases, the other quantity decreases.

• When one quantity decreases, the other quantity also decreases.

• When one quantity decreases, the other quantity increases.

What is the formula for inverse proportion?

• y = k * x

• y = k + x

• y = k - x

• y = k / x

What is the symbol used to denote proportionality?

What is a feature of an inversely proportional graph?

• It is a straight line

• It passes through the origin

• It is a curved line

• None of the above