3 years ago

X-4y=18 plot 3 points

Mathematics

2 answers:

baherus [9]3 years ago

7 0

Isolate y for x - 4y = 18: y = -(18 - x)/4

Licemer1 [7]3 years ago

7 0

Find 3 poins in the form of (x, y) to plot

Give y any value and find x ( you could give x any value and find y, yet is easier this way for me)

If y=0
X-4•0=18; x=18 so 1 point is (18,0)

If y=-1
X-4(-1)=18; x= 18-4=14 so 2nd point is (14, -1)

If y= 1
X-4•1=18; x=18+4=22 so 3rd point is (22,1)

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