P.A. Ch. 4 Prep Test

What type of correlation is shown in the scatterplot?

• Positive linear

• Negative linear

• Nonlinear

• No correlation

These graphs shows students English test scores in relation to their Math test scores.

Which graph correctly identifies the Line of Best Fit?

• Graph A

• Graph B

• Graph C

Which relationshop is shown by this scatterplot?

• As your age increases, your weight decreases.

• As your age increases, your weight increases.

• As your age increases, your weight stays the same.

• As your age stays the same, your weight decreases.

What effect does increasing the y-intercept by 4 and keeping the same slope have on a graph?

• The graphs moves up 4.

• The graph moves down 4.

• No effect at all.

• The graph creates a smiley face.

What effect does multiplying the slope by a number between 0 and 1 (fraction) and keeping the same y intercept have on the graph?

• No effect.

• The graph becomes steeper.

• The graph creates a frown.

• The graph becomes less steep (flatter).

Which graph represents a function? **Hint: Vertical Line Test

• 
• 
• 
• 

Is this relation a function?

Hint: Use the one rule that determines what a function is.

• No, this relation is not a function.
• It depends on the values in the range.
• This relation has multiple outputs for some inputs.
• Yes, this relation is a function.

Which of these tables represent a linear function?

• 
• 
• 
• 

Is this function linear or nonlinear?

• Nonlinear.

• Linear.

• Lunar.

• Neither.

Choose the ordered pairs in the mapping diagram.

**Hint: Choose all that are true.

• ( 2, 11 )

• ( 1, 5)

• ( 0, 6 )

• ( 0, 3 )

• ( -1, 5 )