To graph the given equation, we need some points .
The given equation is of the form
[tex] y=mx +b [/tex]
Where the y intercept is (0,3). And to find the x intercept , we have to plug y=0, and solve for x, that is
[tex] 0=-x+3\\x=3 [/tex]
So the x intercept is (3,0).
So we have (3,0) And (0,3).
On plotting and joining the points we will get the required graph .
Domain, D:
There is no restriction on x. Therefore domain is
[tex] (- \infty, \infty ) [/tex]
And similarly, Range,R:
[tex] (- \infty, \infty) [/tex]
