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If f(x)=5x-3, what is the value of f(4) ?

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If f(x)=5x3f(x)=5x-3, what is the value of f(4)f(4) ?\newline\square

Full solution

Q. If f(x)=5x3f(x)=5x-3, what is the value of f(4)f(4) ?\newline\square
  1. Plug in value 44: Plug in the value 44 into the function f(x)f(x).f(4)=5(4)3f(4) = 5(4) - 3
  2. Perform multiplication: Perform the multiplication. f(4)=203f(4) = 20 - 3
  3. Subtract from 2020: Subtract 33 from 2020.\newlinef(4)=17f(4) = 17

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