Seja f(x)= 2x-1/2. Qual é o valor def(4)?
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Ola, substitui o valor de "x = 4 na função.
![\\ F(x) = 2x - \frac{1}{2}
\\
\\ F(4) = 2*4 - \frac{1}{2}
\\
\\ F(4) = 8 - \frac{1}{2} \\ F(x) = 2x - \frac{1}{2}
\\
\\ F(4) = 2*4 - \frac{1}{2}
\\
\\ F(4) = 8 - \frac{1}{2}](https://tex.z-dn.net/?f=+%5C%5C+F%28x%29+%3D+2x+-+%5Cfrac%7B1%7D%7B2%7D+%0A+%5C%5C+%0A+%5C%5C+F%284%29+%3D+2%2A4+-+%5Cfrac%7B1%7D%7B2%7D+%0A+%5C%5C+%0A+%5C%5C+F%284%29+%3D+8++-+%5Cfrac%7B1%7D%7B2%7D+)
Tire mmc entre 1 e 2
1, 2 | 2
1, 1 | 1
mmc = 1*2 = 2
![\\ F(x) = \frac{2*8-1*1}{2}
\\
\\ F(x) = \frac{17}{2}
\\ F(x) = \frac{2*8-1*1}{2}
\\
\\ F(x) = \frac{17}{2}](https://tex.z-dn.net/?f=+%5C%5C+F%28x%29+%3D++%5Cfrac%7B2%2A8-1%2A1%7D%7B2%7D+%0A+%5C%5C+%0A+%5C%5C+F%28x%29+%3D++%5Cfrac%7B17%7D%7B2%7D+%0A%0A)
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Tire mmc entre 1 e 2
1, 2 | 2
1, 1 | 1
mmc = 1*2 = 2
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