Can someone explain to me I’m confused

Step-by-step explanation:

Here you have the function f(x) = 3x + 5 and are being asked to 'evaluate' it at x = {-1,0, 2, 4}.

Arbitrarily starting out with x = 0, we get f(0) = 3(0) + 5 = 5

Next,

f(-1) = 3(-1) + 5 = 2

f(2) = 3(2) + 5 = 11

and, finally, f(4) = 3(4) + 5 = 17

so the right hand column for this function (which are function values) is

2

5

11

17

and in set format this is {2, 5, 11, 17}

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step-by-step explanation:

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step-by-step explanation: