Question:
in the second video how are you finding the value of y while plotting the graph.
Answer:
Given, f(x) = (x2 - 9)/(x - 3)
=> f(x) = {(x - 3) * (x + 3)}/(x - 3)
=> f(x) = (x + 3)
Let f(x) = y = x + 3
Now,
x: 0 1 2 3 4 .....
y: 3 4 5 6 7 ......
So, we take values of x and y in this way and the plot these points in the graph.
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