Midterm Vocab

Which scatterplot has a negative correlation?

• 
• 
• 

What is the slope of a vertical line?

• undefined

• zero

• 1

• no solution

x is the ...

• dependent variable

• independent variable

What MUST be true if 2 lines are parallel?

• They cross only once

• Their slopes are the same

• Their slopes are undefined

• Their slopes are opposite reciprocals of each other

Which is NOT a representation of slope?

• m

• rate of change

• b

In a system of equations, how would you know if it has infinitely many solutions?

• The equations would have different slopes

• The equations would have the same slope and different y-intercepts

• The equations would have the same slope and same y-intercept

Which scatterplot has a positive correlation?

• 
• 
• 

In a system of equations, how would you know if it has no solution?

• The equations would have different slopes

• The equations would have the same slope and different y-intercepts

• The equations would have the same slope and same y-intercept

The domain is the ...

• input values

• output values

What is the slope of a horizontal line?

• undefined

• zero

• 1

• no solution