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April 21, 2014

April 21, 2014

Posted by **Audrey** on Saturday, April 24, 2010 at 7:07pm.

x: -4, 0, 2, 4

f(x): 4, 6, 7, 8

- Math -
**Damon**, Saturday, April 24, 2010 at 7:41pmslope = (8-4)/(4--4) = 4/8 = 1/2

It is constant for all points

so

y = .5 x + b

8 = .5(4) + b

6 = b

so

y = .5 x + 6

check that for all points like (-4,4)

4 = (.5)(-4) + 6 ???

4 = -2 + 6

4 = 4 sure enough

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