espinosa17 espinosa17

16-08-2017
Mathematics

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Find the x and y intercept of -3x+9y=18

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choixongdong choixongdong

16-08-2017

-3x+9y=18
9y = 3x + 18
y = 1/3 x + 2

x intercept y = 0, then
1/3 x + 2 = 0
1/3x = -2
x = -6
so
(-6,0)

y intercept x = 0 then y = 2
(0,2)

answer
x intercept: (-6,0)
y intercept: (0,2)

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