Question: Prove or disprove without using horizontal line test whether the following function is oneto-one and/or onto: f:ZZ defined as f(x)=19x+9

Prove or disprove without using horizontal line test whether the following

Prove or disprove without using horizontal line test whether the following function is oneto-one and/or onto: f:ZZ defined as f(x)=19x+9

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