f:R->RSKf(x)=8x-2SKf(a)=f(b)SKa, b in RProve

Emily-Jane Bray

Emily-Jane Bray

Answered question

2021-09-16

f:R>R
f(x)=8x2
f(a)=f(b)
a,bR
Prove that f is one-to-one.

Answer & Explanation

faldduE

faldduE

Skilled2021-09-17Added 109 answers

Since f(a)=f(b), then
8a-2=8b-2
8a=8b
a=b
Therefore, f is one-to-one

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