When data is displayed with a scatter plot, it is often useful to attempt to represent that data with the equation of a straight line. What is this line called and what is its purpose?
a.
slope, used to determine if a line represents a linear equation
c.
line of best fit, used to represent the linear trend in the data
b.
correlation, used to determine if a line represents a linear equation
d.
quadrant, used to represent the linear trend in the data