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 2018-02-22 07:12:13

Hannibal lecter
Member
Registered: 2016-02-11
Posts: 224
Website

effect of x changes in linear function

If y = f(x) is a linear function, then increasing x by 1 unit changes the corresponding y by m units, where m is the slope.

that's, True. Suppose we start at x = x1 and increase x by 1 unit to x1 + 1. If y = b + mx, the corresponding values of y are b + mx1 and b + m(x1 + 1). Thus y increases by
∆y = b + m(x1 + 1)−(b + mx1) = m.


why I find this hard to understand?

Last edited by Hannibal lecter (2018-02-22 07:12:48)


Wisdom is a tree which grows in the heart and fruits on the tongue

Offline

#2 2018-02-22 20:12:25

bob bundy
Administrator
Registered: 2010-06-20
Posts: 8,354

Re: effect of x changes in linear function

Try drawing a diagram.  I think this will show you what is happening.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

Offline

#3 2018-02-26 20:49:12

iamaditya
Member
From: Planet Mars
Registered: 2016-11-15
Posts: 766

Re: effect of x changes in linear function

You can use Desmos Graphing Calculator to learn about it, the best graphing calculator as far as I know. It contains a lots and lots of features, to help you learn graphs.


Practice makes a man perfect.
There is no substitute to hard work
All of us do not have equal talents but everybody has equal oppurtunities to build their talents.-APJ Abdul Kalam

Offline

Board footer

Powered by FluxBB