Question

Dada a função definida por f(x)=-3x+7,determine:

a)f(0);

b)f(-3);

c)f(1/2);​

Answer 1

$f(x) = - 3x + 7$

$f(0) = - 3.0 + 7 = 0 + 7 = 7$

$f( - 3) = - 3. - 3 + 7 = 9 + 7 = 16$

$f( \frac{1}{2} ) = - 3. \frac{1}{2} + 7 = - \frac{3}{2} + 7 = \frac{ - 3 + 14}{2} = \frac{11}{2}$

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