# Is (1,0) is an ordered pair of the function f(x)= 1 + x?

##### 1 Answer

Oct 26, 2016

no,

#### Explanation:

Ordered pairs are usually written in the form

so usingthe function,

we can rewrite it as,

any pair of x and y that satisfy this equation are solutions to the equation.

so subbing in

which is not true so the point does not make the function true.

It might be easier to see graphically,

graph{1+x [-10, 10, -5, 5]}

any combination of x and y on this line make the equation true and as such are an ordered pair of the function.