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September 20, 2014

September 20, 2014

Posted by **moby** on Friday, April 25, 2014 at 12:33pm.

y = 4x -9

(-9, 27)

(3, -21)

(-6, 15)I think this one?

(5, -28)

- Math7 "Ms Sue" -
**moby**, Friday, April 25, 2014 at 12:47pmhelp?

- Math7 -
**Bosnian**, Friday, April 25, 2014 at 12:48pmFor x = - 9

y = 4 x - 9 = 4 * ( - 9 ) - 9 = - 36 - 9 = - 45

For x = 3

y = 4 x - 9 = 4 * 3 - 9 = 12 - 9 = 3

For x = - 6

y = 4 x - 9 = 4 * ( - 6 ) - 9 = - 24 - 9 = - 33

For x = 5

y = 4 x - 9 = 4 * 5 - 9 = 20 - 9 = 11

If youe expression mean :

y = - 4 x -9

then

( 5 , - 28 ) is not a solution becouse:

for x = 5

y = - 4 x -9 = - 4 * 5 - 9 = - 20 - 9 = - 29

- Math7 -
**moby**, Friday, April 25, 2014 at 1:06pmThank you!

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