Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**mom****Member**- Registered: 2012-04-25
- Posts: 94

This question has thrown me off as I realize that lines intersect at only one point.

If two lines intersect in more than one point, then they are which of the following?

Unique

Inconsistent

Parallel

The same

None of these

My thought is none of these but wanted other opinions

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,459

Hi;

They are the same.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

Offline

**mom****Member**- Registered: 2012-04-25
- Posts: 94

I guess that makes sense but if it is the same line, it is not intersecting with itself is it? This is where I am confused...

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,459

The intersection of the set of all the points of a line with itself is the line. But that is not a choice.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

Offline

**mom****Member**- Registered: 2012-04-25
- Posts: 94

confusing quwstion

thanks

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,459

Hi mom;

I like the fourth choice best. Did you check?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

Offline

**DeanPemberton****Member**- From: USA
- Registered: 2014-10-30
- Posts: 20
- Website

Answer is "the same" if two lines intersect on more then one point then they are in the same.

Offline

Pages: **1**