After plotting your data on graph paper, draw a line of best fit through your data points. Circle two grid points (locations where the best-fit line perfectly crossses a grid intersection) on your graph and copy their coordinates below. NOTE: grid points are usually NOT data points!

Your points: ( ______, ______ ) and ( ______, ______ )
Use these points to find the equation of your line. Show your work.
Calculate the slope of the line.
Calculate the y-intercept of the line
Write the equation of the line first in rational form and then in decimal form.
	y = ____________ x + ____________	y = ____________ x + ____________

Rewrite the decimal form of the line's equation, using the names of the variables instead of the generic variables x and y.

______________________ = ___________  ___________________________ + ____________

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Career Connection to Teaching with Technology