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A function is an equation (a relation) which has only one y-value for every x-value. If a single x-value has more than one y-value, the equation is no longer called a function.
No. A function must have no more than 1 y-value for each x-value. A vertical line has an infinite number of y-values at a single x-value.
Well, darling, "3 times more" simply means you're multiplying something by 3 to get a larger amount. So if you have 5 apples and you want 3 times more, you'd end up with 15 apples. It's just a fancy way of saying triple the original amount.
Equate is a verb meaning to consider to be the same as or equivalent to another, compare; to show something the same as or equivalent to another; to cause two or more things to be the same in quantity or value, even, equalize. Example sentence:Using three egg whites in the recipe will equate to the using two whole eggs.
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