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Mathematics
Mary
29 April, 19:41
Is f (x) = x^2 - 1 a function?
Why or why not?
+5
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Nasir Cruz
29 April, 23:33
0
Yes
Step-by-step explanation:
The function f (x) = x^2 - 1 is a quadratic due to its degree of 2. Its graph is a parabola or u-shaped graph which passes the vertical line test. This means it assigns each input a distinct output. Inputs do not repeat with different outputs. This is a function.
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