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#1 2018-02-01 23:45:46

Hannibal lecter
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Registered: 2016-02-11
Posts: 225
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question about linear function form

Hi,

a linear function has the form  :

y = f(x)=b + mx

b is the vertical intercept, or value of y when x is zero.


what is the meaning of  " b is the vertical intercept"

can anyone give me an explanation please


for example,  y = 10 + mx
b = 10
what is it intercept?


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

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#2 2018-02-02 00:15:13

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,621

Re: question about linear function form

Hi Hannibal lecter,

Please see The equation of a straight line.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#3 2018-02-02 05:52:39

Hannibal lecter
Member
Registered: 2016-02-11
Posts: 225
Website

Re: question about linear function form

but be is just a value

how it's intercept?


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

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#4 2018-02-02 20:30:17

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,200
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Re: question about linear function form

Hannibal lecter wrote:

for example,  y = 10 + mx
b = 10
what is it intercept?

The
-intercept is the point at which the line crosses the
-axis.

Since
, then the coordinates of the
-intercept are
. Or sometimes people just say that the
-intercept is
.

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