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

You are not logged in.

- Topics: Active | Unanswered

**Derick Mixon****Member**- Registered: 2013-09-03
- Posts: 65

For numbers 17 through 20 use f(x) = x2 x + 2

find f(2)

Find f(0)

Find f(-4)

Find f(1)

Can you help me solve these

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,908

Everywhere you see an x just plug in the number and then do the arithmetic.

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline

**Derick Mixon****Member**- Registered: 2013-09-03
- Posts: 65

I have the first 2 right I need the last 2 done

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,908

They are done in post #102

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

Offline