00:01
Hi, there is a question we say that a graph is being given.
00:05
Let us draw the rough sketch of the graph.
00:09
It seems like the graph is okay.
00:18
Like this roughly i'm writing this highest point.
00:23
This point has coordinate minus three comma one.
00:29
This point has coordinate zero comma three.
00:33
This point will have coordinate two comma minus three.
00:37
The question is use the vertical line test to determine whether the curve is a graph of a function of x.
00:45
So if we draw vertical lines, every vertical line intersects the graph at one and only one point.
00:51
So yes, curve is a function of x.
00:55
Second is domain and range.
01:02
I mean interval notations...