Which of the following linear functions are invertible and has symmetry about the origin? Select all that apply. a(x) = 4x-5
b(x)= 2(1/2x + 15) - 10
c(x) = 3/4(4/3x+8)+x-6
d(x) = 9x
f(x) =- 15

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

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step-by-step explanation:

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