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3 years ago

Determine which line the point (1, -2) lies on. y = x + 5 y = 2x + 1 y = 2x - 4 y = x -2

Mathematics

1 answer:

frutty [35]3 years ago

7 0

Answer:

y = 2x - 4

Step-by-step explanation:

Given point (1, -2) so x = 1, y = -2

Just plug in and verify

y = x + 5

y = 1 + 5 = 6 ≠ -2 , no

y = 2x + 1

y = 2*1 + 1 = 3≠ -2 , no

y = 2x - 4

y = 2*1 - 4 = -2, yes

y = x -2

y = 1 - 2 = -1 ≠ -2 , no

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