Math Is Fun Forum

Hannibal lecter

Member

Registered: 2016-02-11

Posts: 392

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?

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

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,855

Re: question about linear function form

Hi Hannibal lecter,

Please see The equation of a straight line.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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Hannibal lecter

Member

Registered: 2016-02-11

Posts: 392

Re: question about linear function form

but be is just a value

how it's intercept?

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

zetafunc

Moderator

Registered: 2014-05-21

Posts: 2,440

Website

Re: question about linear function form

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

.