Question

dado as funcoes g [x] -3x²-5×+1 calcle

a [1] b [-4] c [0] d [1/ 2 ]

Answer 1

g(x) = - 3x² - 5x + 1
g(1) = - 3.1² - 5.1 + 1
g(1) = - 3.1 - 5 + 1
g(1) = - 3 - 4
g(1) = - 7
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g(-4) = - 3.(-4)² - 5.(-4) + 1
g(-4) = - 3.16 + 20 + 1
g(-4) = - 48 + 21
g(-4) = - 27
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g(0) = - 3.0² - 5.0 + 1
g(0) = 1
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g(1/2) = - 3.(1)² - 5.1  + 1
                  (2)        2

g(1/2) = - 3 -  5 + 1
                4    2

g(1/2) = - 3 - 10 + 4
                   4

g(1/2) = - 13 + 4 = - 9
                   4          4