Functions Families/Regression/Piecewise Mini-Review

Match each graph to the function type it represents

• Sqaure Root

• 
• Quadratic

• 
• Absolute Value

• 
• Exponential

• 
• Cubic

• 

Tags

Function Families

Which regression type would give you an r and r² value?

• linear regression

• quadratic regression

• exponential regression

r² is known as the ​​ (a)  

r is known as the ​ (b)  

• coefficient of determination
• correlation coefficient

Tags

R vs R^2

What's true about r and r²?

r² measures ​ ​ (a)  

r measures ​ (b)  

• how well a function fits the data
• linearity

Tags

R vs R^2

True or False? The domain of the function shown is all real numbers

• True

• False, the domain is x ≥ 0

• False, the domain is x ≤ 0

• False, the domain is y ≥ 0

Tags

Domain and Range

Even, odd, neither, or both?

• Even
• Neither
• Odd
• Both

Tags

Even and Odd Functions

Even, odd, neither, or both?

• Even

• Neither

• Odd

• Both

Tags

Even and Odd Functions

Even, odd, neither, or both?

• Even

• Neither

• Odd

• Both

Tags

Even and Odd Functions

The r² value of the quadratic regression of this table is ...

• r²=0.9789

• r²=0.9515

• r²=0.9754

• r²=0.9613

Tags

R^2

Which choice represents what the correlation coefficient of this scatterplot would most likely be?

• r = 0
• r = -0.9
• r = -0.7
• r = 0.7
• r = 0.9

Tags

Correlation Coefficient (r)