Find the Quadratic Equations That Model the Data

Find the best fitting quadratic model for the data given.

• y = 1.2x² + 13x + 504.3

• y = 12x² + 13x + 504.3

• y = .12x² + 1.3x + 504.3

Which equation best represents the equation relationship between x and y in the table below.

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• 
• 
• 

• 
• 
• 
• 

• 
• 
• 
• 

• A

• B

• C

• D

• F

• G

• H

• J

• A

• B

• C

• D

The scatterplot and table show the weekly profit in dollars earned from the sale of pastries at seven different prices. The data can be modeled by a quadratic function.

Which function best models the data?

Which function best models the data? Hint: Read the Question carefully to see what type of graph it is talking about such as linear, quadratic or exponential.

• F

• G

• H

• J

(a)  

• F

• G

• H

• J