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The function rule is y=2x-1 if the input is 3 what is the output? Please Help

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well, plug in your value
y = 2*3 - 1 = ?

I still don’t get it

Is it 7

2*3 - 1 = 6-1
still think it's 7? really?

function rule is 2x-3

If my function rule is y=2x+1 what is the output of the input is -3?

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