Write a Linear Function

Directions: Using the digits 1 through 8 [You will use each number only once, except for one number that will be used twice in the same coordinate point. i.e.(1,1), (2,2), (3,3), (4,4), (5,5), (6,6), (7,7) or (8,8)], find three coordinate points that lie on the same line. Write the equation of the line represented by the three points and have the following requirements:
a.) It has a positive slope
b.) The slope is less than one.

Hint

What does it mean for the slope to be positive and less than one?
How does this affect the coordinates, specifically being restricted by the numbers you can use?

Answer

y = 1/2x + 3 (4,5), (6,6), (8,7)

Source: Jeanmarie Mullen

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