Ch 5 Test Review

Front

What is a positive correlation?

Back

A positive correlation is a relationship between two variables where an increase in one variable leads to an increase in the other variable.

Front

What is a negative correlation?

Back

A negative correlation is a relationship between two variables where an increase in one variable leads to a decrease in the other variable.

Front

What does 'no correlation' mean?

Back

No correlation means there is no relationship between two variables; changes in one variable do not affect the other.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the y-intercept from an equation?

Back

To find the y-intercept, set x = 0 in the equation and solve for y.

Front

What is the slope of the line represented by the equation y = mx + b?

Back

The slope is represented by the coefficient m in the equation.

Front

What does the slope of a line indicate?

Back

The slope indicates the steepness of the line and the direction of the relationship between the variables.

Front

How do you convert an equation to slope-intercept form?

Back

To convert to slope-intercept form, solve for y in terms of x.

Front

What is the y-intercept of the equation y = -2x + 5?

Back

The y-intercept is (0, 5).

Front

What is the slope of the equation y = 4x + 2?

Back

The slope is 4.