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Hi, there is a question which says that in this exercise 7 and 8, which of the graph are graphs of the function x, function of x.
00:17
So part a, i need to give regions for the answer as well.
00:23
X, y, we will be using vertical line test.
00:28
So let us draw a vertical line.
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This vertical line intersects the graph at more than one point.
00:35
That means this will not be a function as there are two values of y for a single value of x.
00:43
So this cannot be a function.
00:45
Part b, if i can draw, this is y and like this, let us draw vertical lines, vertical lines...