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Concept

Constant Function

A constant function is a linear function whose graph has a slope of

0 .

An example is the function

y = 2 .

The equation of a constant function can always be written on the form

y = b,

where

b

is the

y

-intercept. Constant functions typically do not have

x

-intercepts. The only exception is the function

y = 0,

which has an infinite number of

x

-intercepts.

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