Midterm Vocab

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is zero.

Front

How can you identify a negative correlation in a scatterplot?

Back

A negative correlation in a scatterplot is indicated when as one variable increases, the other variable decreases.

Front

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

Back

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

Front

What is the domain in a function?

Back

The domain is the set of input values for the function.

Front

Which equation is an example of identity (infinitely many solutions)?

Back

2x + 1 = 2x + 1 is an identity.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What does a positive correlation in a scatterplot indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also increases.

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the range in a function?

Back

The range is the set of output values for the function.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and different y-intercepts.