if f(x)=x-9 find f(x)-f(-x)
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Given f(x) = x - 9
f(-x) = -x - 9
Hence f(x) - f(-x) = x - 9 - (-x - 9)
= x - 9 + x + 9
= 2x
Hence the answer is 2x i hope.
f(-x) = -x - 9
Hence f(x) - f(-x) = x - 9 - (-x - 9)
= x - 9 + x + 9
= 2x
Hence the answer is 2x i hope.
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