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

You are not logged in.

#1 2015-05-03 19:36:15

1h21
Guest

Absolute value sign

My book has an example where f(x) = |2x - 3| and f(a+h) = |2(a+h) - 3| = |2a - 2h - |
Why does the sign switch from positive to negative after multiplication?

#2 2015-05-03 20:27:13

Olinguito
Member
Registered: 2014-08-12
Posts: 649

Re: Absolute value sign


Bassaricyon neblina

Offline

Board footer

Powered by FluxBB