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Mathematics 8 Online
OpenStudy (chasebraves):

If ƒ(x ) = x 2 + 1 and g(x ) = 3x + 1, find ƒ(2) + g(3).

zepdrix (zepdrix):

How did you do those fancy f's? XD Those are so cool haha

zepdrix (zepdrix):

\[\large\rm f(\color{orangered}{x})=(\color{orangered}{x})^2+1,\qquad\qquad\qquad g(\color{royalblue}{x})=3(\color{royalblue}{x})+1\]

zepdrix (zepdrix):

We want to evaluate our function f at x=2, and our function g at x=3,\[\large\rm f(\color{orangered}{2})=(\color{orangered}{2})^2+1,\qquad\qquad\qquad g(\color{royalblue}{3})=3(\color{royalblue}{3})+1\]

zepdrix (zepdrix):

After you've finished those calculations, add the results together.

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