Unit 6 Review: Linear Equations

Front

What is correlation in statistics?

Back

Correlation measures the relationship between two variables, indicating how one may change in relation to the other.

Front

What are the types of correlation?

Back

There are three types of correlation: positive correlation, negative correlation, and no correlation.

Front

What does a scatter plot represent?

Back

A scatter plot displays values for two variables for a set of data, showing how they relate to each other.

Front

What is a 'Line of Best Fit'?

Back

A 'Line of Best Fit' is a straight line that best represents the data on a scatter plot, indicating the trend of the data.

Front

How do you find the y-intercept of a linear equation?

Back

The y-intercept is the value of y when x is 0, found by substituting x=0 into the equation.

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

What does the slope of a line represent?

Back

The slope represents the rate of change of y with respect to x, indicating how steep the line is.

Front

How do you determine if a scatter plot has no correlation?

Back

A scatter plot has no correlation if the points are randomly scattered without any discernible pattern.

Front

What is the equation of a line with a slope of 1 and a y-intercept of 2?

Back

The equation is y = x + 2.

Front

How can you identify coordinates on a graph?

Back

Coordinates are identified as (x, y) pairs, where x is the horizontal position and y is the vertical position.