Which function is the inverse of f(x) = –5x – 4?
a) f-1(x)=-5x-4
b) f-19(x)=-1/5x+4/5
c) f-1(x) = –4x + 5
d) f-1(x) = 4x + 4

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

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