Writing and Interpreting an Equation of a Linear Model

Match the following graphs to the description.

• No Association

• 
• Negative Linear Association

• 
• Positive Linear Association

• 
• Nonlinear Association

• 

Which of the following could be the equation of the good line of fit through the data?

Tags

CCSS.8.EE.B.5

Mathematical Equivalence

ON

Tags

CCSS.8.EE.B.5

Mathematical Equivalence

ON

The y-intercept of the good line of fit would be the point (0, 4).

Does this make sense in terms of the problem?

• Yes, if a student has a 0 cm foot, we predict they would have a 4 cm hand.

• No, a student can't have a 0 cm foot.

Tags

CCSS.HSF.LE.B.5

Mathematical Equivalence

ON

What is the equation of the good line of fit?

(Hint: Pay attention to scale!)

Mathematical Equivalence

ON

Tags

CCSS.8.EE.B.5

Write the equation for the good line of fit.

(Hint: Pay attention to scale!)

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Tags

CCSS.HSF.LE.B.5

• The number of adults is equal to the number of eyeglasses in a household.

• The number of adults is greater than the number of eyeglasses in a household.

• The number of adults is less than the number of eyeglasses in a household.

• No association.

Tags

CCSS.HSF.LE.B.5