Line of Best Fit Review

The equation of the line of best fit is $$y = \frac{1}{2}x + 3$$ .

A negative correlation indicates that as one variable increases, the other variable decreases.

Graph C shows a linear relationship between x and y.

The y-intercept is the value of y when x is 0. In the equation $$y = \frac{1}{2}x + 3$$ , the y-intercept is 3.

No, the line of best fit is an estimate and may not perfectly represent all data points.

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

The slope is the coefficient of x in the equation. For $$y = \frac{1}{2}x + 3$$ , the slope is $$\frac{1}{2}$$ .

A scatter plot is a graph that shows the relationship between two variables using dots to represent data points.

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

You can visually assess the line of best fit by drawing a straight line that best represents the trend of the data points.