SOLUTION: Draw the graph of the function f(x)=2|x| for the domain -2(less than or equal to x (less than or equal to)1. i am sooo confused on this function stuff. I don't get what the doma

Algebra ->  Rational-functions -> SOLUTION: Draw the graph of the function f(x)=2|x| for the domain -2(less than or equal to x (less than or equal to)1. i am sooo confused on this function stuff. I don't get what the doma      Log On


   

Question 507550: Draw the graph of the function f(x)=2|x| for the domain -2(less than or equal to x
(less than or equal to)1. i am sooo confused on this function stuff. I don't get what the domain and range are in these equations and what to do at all! And I thought i WAS GOOD AT ALGEBRA UNTIL i GOT HERE.
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
First, let's draw the graph for f%28x%29+=+2%2Aabs%28x%29:
graph%28400%2C400%2C-5%2C5%2C-5%2C5%2C2%2Aabs%28x%29%29
The domain of the function is simply all of the possible values of the independent variable, that's x.
You are instructed to focus your attention on that part of the graph that lies between x = -2 and x = 1 (-2%3C=x%3C=1) so when you draw the graph, you can omit the graph for x less than -2 and x greater than 1. I couldn't show this on my drawing.