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

You are not logged in.

- Topics: Active | Unanswered

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

Classify the point as "above", "below", or "on" the line y=-2x+7

On

Above

Below

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,856

Hi;

What point?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

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

at point (3,3)

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,856

Hi;

What do you think?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

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

So the point would be above the line, correct?

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,856

Yes, you can see that from the graph.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

Offline

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

thank you

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,856

You can also get the answer algebraically without resorting to a graph.

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

Offline