![]() ![]() if they multiplied inside the function by something larger than 1, or outside the function by something smaller than 1, then they did a function compression.įor instance, looking at y = x 2 − 4, you can see that multiplying outside the function doesn't change the location of the zeroes, but multiplying inside the function does. Learn how to recognize shifts, vertical and horizontal stretches and reflections as they affect parent functions in this free math video tutorial by Mario's.
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