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**Neha****Member**- Registered: 2006-10-11
- Posts: 173

find the distance from the point (3,-7) to the line x = -1.

this way ofcourse....!!!

y = -1x + b

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**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

y ≠ -x + b.

y doesn't relate to x at all, because x is always -1.

And because x is always -1, then a point with an x coordinate of 3 is [3-(-1)=] 4 away from the line.

Why did the vector cross the road?

It wanted to be normal.

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