What is the central or main idea? how do you find the central or main idea of a text?

The central or the main idea refers to the point which the author wants to communicate to their readers.

The central or main idea can be found in the beginning of the text, near the end, or it could not be stated but is implied throughout the text. You can determine the main idea because there will me details supporting or describing it.

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i believe that the answer is b! i hope i out!

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.