equation of the line

Front

What is the equation of a line in slope-intercept form?

Back

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.

Front

What is a positive association in a graph?

Back

A positive association means that as one variable increases, the other variable also increases.

Front

What is a negative association in a graph?

Back

A negative association means that as one variable increases, the other variable decreases.

Front

What does 'no relationship' mean in the context of a graph?

Back

It means that there is no discernible pattern or correlation between the two variables.

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot, minimizing the distance between the line and all data points.

Front

How do you determine if a line is a good line of best fit?

Back

A good line of best fit should have roughly equal numbers of points above and below it and should follow the trend of the data.

Front

What is the y-intercept in the equation of a line?

Back

The y-intercept is the point where the line crosses the y-axis (x=0).

Front

What does it mean if a graph has a constant relationship?

Back

It means that the value of one variable does not change as the other variable changes.

Front

How can you identify a positive association from a scatter plot?

Back

If the points on the scatter plot trend upwards from left to right, it indicates a positive association.