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V125BC [204]
3 years ago
6

A function f(x) = x^2 - 4 has a domain as the set of integers

Mathematics
1 answer:
mel-nik [20]3 years ago
5 0

Answer:

8

Step-by-step explanation:

f(x) = (x+2)(x-2)

Substituting x=1 into f(x):

f(1) = 3*-1

     = -3

Since -2 & 2 touch the x-axis, 1 has a negative y value, 2 has a y value of 0, and all values from 2, are positive.

Hence,

3, 4, 5, 6, 7, 8, 9, 10 are all positive. Therefore, the answer is 8

This can be confirmed with a graph, as attached below.

<em>Feel free to mark this as brainliest! :D</em>

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