Question

1) Dada a função f(x) = x2 - 5x + 4, calcule: a) f(0) = b)f(-1) = c)f(2)= d)f(-2) = e)f(1) =​

Answer 1

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f(x) = x² - 5x + 4

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A)

f(0) = (0)² - 5(0) + 4

0 + 4

4

R) f(0) = 4

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B)

f(-1) = (-1)² - 5(-1) + 4

1 + 5 + 4

10

R) f(-1) = 10

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C)

f(2) = (2)² - 5(2) + 4

4 - 10 + 4

4 - 6

-2

R) f(2) = -2

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D)

f(-2) = (-2)² - 5(-2) + 4

4 + 10 + 4

14 + 4

18

R) f(-2) = 18

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E)

f(1) = (1)² - 5(1) + 4

1 - 5 + 4

1 - 1

0

R) f(1) = 0

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Att: MarcosPCV