Question

sendo a funçao f(x)=x²-3x-10, calcule
a) f(-2)
b) f(-1)
c)f(0)
d)f(3)
e)(5)
f) f(1/2)

Answer 1

Resposta:

f(-2) = -2² - 3.(-2) - 10

4 + 6 - 10 = 0

f(-1) = -1² -3.(-1) -10

1 + 3 - 10 = -6

f(0) = 0² - 3 . 0 -10= -10

f(3) = 3² - 3 . 3 -10

9 - 9 - 10 = -10

f(5) = 5² - 3 . 5 -10

25 - 15 - 10= 0

f(1/2) = 0,5² - 3 . 0,5 - 10

0,25 - 0,15 - 10 = -9,90