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

User Leselle
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1 Answer

3 votes

The Solution:

Given the point (1,-2).

We are required to find the line on which the point (1,-2) lies.

The line where point (1,-2) lies is the line that will give -2 for y when x=1.

So, substituting 1 for x in the line below:


\begin{gathered} y=2x-4 \\ \text{ when x=1, we get} \\ y=2(1)-4=2-4=-2 \end{gathered}

This is the only line that meets the condition.

Therefore, the correct answer is


y=2x-4

User Kbirk
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