392,986 views
28 votes
28 votes
Find the missing coordinates y+7x=1

(-1, )
(4, )

User Mpseligson
by
2.4k points

1 Answer

24 votes
24 votes

Answer:

(-1,8)

(4,-27)

Explanation:

y+7x=1

Let x = -1 and find y

y+7(-1)=1

y -7 =1

Add 7 to each side

y-7+7 = 1+7

y = 8

(-1,8)

Let x = 4 and find y

y+7(4)=1

y +28 =1

Subtract 28 from each side

y+28-28 = 1-28

y = -27

(4,-27)

User Guasi
by
3.2k points
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