Decide whether each function is one-to-one. Do not use a calculator. $$y=(x-2)^{2}$$
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Step 1
A function is one-to-one if each input (x-value) corresponds to a unique output (y-value). In other words, no two different inputs can have the same output. To determine if the function $y=(x-2)^2$ is one-to-one, we can use the horizontal line test. If any Show more…
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