Answered

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I need help with my Pre-Calculus HW - a graph is shown and it says I need to "state whether the function is one-to one.

I Need Help With My PreCalculus HW A Graph Is Shown And It Says I Need To State Whether The Function Is Oneto One class=

Sagot :

Okay, here we have this:

Considering that a function is one-to-one if and only if no horizontal line intersects its graph more than once.

So, according with this we any horizontal line that is drawn on the line touches only one point on it, therefore the function is one to one.

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