00:01
In this problem, you'll have a graph that looks like this, and you want to answer some statements about it, whether or not they're true.
00:05
So the first one says the graph is a function because the value of x is the same for every value of y.
00:12
That one is false.
00:13
So when you're looking at a graph, for it to be a function, each value of x has to have a unique output for y, meaning each input can only have one output.
00:27
So the fact that this one value of x has infinite outputs for y, that means it's not a function.
00:36
Okay, the next one says this graph is a function whose range is the set of three.
00:40
Okay, that is also false.
00:43
First, it's not a function.
00:45
It doesn't pass the vertical line test.
00:47
But also, it ranges from negative infinity to infinity because range are all the included y values, and this graph goes on forever.
00:55
Next for c, it says this graph is not a function because the value x equals 3 is assigned to more than one y value...