You are asked to write an equation for the line of best fit for the scatter plot shown without the use of a graphing calculator. What should you do first?

Find the slope using (1.2) and (9.12)
Find the slope using (4.6) and (5.81
Decide which two points give the most representative straight line.
Connect the points together

George is folding a piece of paper to make an origami figure. each time he folds the paper, the thickness of the paper is doubled. the paper starts out flat, with a thickness of 1 millimeter. a. write a list of six ordered pairs showing the output as the thickness of the paper when the input is the number of times it is folded. explain how you came up with your ordered pairs. b. is this relation a function? explain why or why not using the ordered pairs you came up with in part a.

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What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove