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19 December, 13:14

Why will the value of y for the function y equals 5x + 1 always be greater than that of y equals 4x + 1 when X is greater than 1?

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  1. 19 December, 13:25
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    "Why?" in math has various meanings.

    Let's solve

    5x + 1 > 4x + 1

    That's easily solved,

    5x - 4x > 1 - 1

    x > 0

    Since x>1 is included in x>0, it's in the solution set to the above inequality, so all such x make the inequality true.
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