(2) Answers

[latex]f(x)=2x+1\\\\x=-3\\\\f(-3)=2\cdot(-3)+1=-6+1=-5[/latex]

This just means substitute -3 as x, so its -5

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(2) Answers

[latex]f(x)=2x+1\\\\x=-3\\\\f(-3)=2\cdot(-3)+1=-6+1=-5[/latex]

This just means substitute -3 as x, so its -5

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