0324P - Roberts - Ch 3 Review

Which of the following is a linear function in 2 variables?

• $y=x^2+2x+1$

• $y=3x-4$

• $y=\left|x\right|$

• $y=-9$

What can be said of the slope of this line?

• Positive

• Negative

• Zero

• Undefined

What can be said of the slope of this line?

• Positive

• Negative

• Zero

• Undefined

What can be said of the slopes of the two lines.

• Slopes are positive and equal.

• Slopes are positive and negative reciprocals of one another.

• Slopes are negative and reciprocals of one another.

• Slopes are negative and equal.

• Slopes are negative and that is all that can be determined.

Is the equation linear or nonlinear?

• Linear
• Non-linear

 Linear or Nonlinear?

• Linear
• Non-linear

Is the equation linear or nonlinear?

• Linear
• Nonlinear

Determine if the graph is linear or nonlinear.

• Linear
• Nonlinear

Is this mapping a function or not a function? 

• Function
• Not a Function

Is this graph a function or not a function? 

• Function
• Not a Function