Nie ogarniam jest w stanie ktoś pomóc ?

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Odpowiedź :

Anakamoviz Anakamoviz · Answer 1

Odpowiedź:

dla x = 2

a) f(x) = 3×2 - 2 = 6 - 2 = 4

b) f(x) = 2×2 + 9 = 4 + 9 = 13

c) f(x) = -7×2 - 3 = -14 - 3 = -17

d) f(x) = 2² + 2 = 4 + 2 = 6

e) f(x) = 2² - 5 = 4 - 5 = -1

f) f(x) = -2² + 2 = -4 + 2 = -2

dla x = -2

a) f(x) = 3×(-2) - 2 = -6 - 2 = -8

b) f(x) = 2×(-2) + 9 = -4 + 9 = 5

c) f(x) = -7×(-2) - 3 = 14 - 3 = 11

d) f(x) = (-2)² + 2 = 4 + 2 = 6

e) f(x) = (-2)² - 5 = 4 - 5 = -1

f) f(x) = -(-2)² - 2 = -4 - 2 = -6

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Basetlaviz Basetlaviz · Answer 2

a)

[tex]f(2) = 3\cdot2 - 2 = 6-2 = 4\\\\f(-2) = 3\cdot(-2)-2 = -6-2 = -8[/tex]

b)

[tex]f(2) = 2\cdot2+9 = 4+9 = 13\\\\f(-2) = 2\cdot(-2)+9 = -4+9 = 5[/tex]

c)

[tex]f(2) = -7\cdot2 - 3 = -14-3 = -17\\\\f(-2) = -7\cdot(-2)-3 = 14-3 = 11[/tex]

d)

[tex]f(2) = 2^{2}+2 = 4+2 = 6\\\\f(-2) = (-2)^{2}+2 = 4+2 = 6[/tex]

e)

[tex]f(2) = 2^{2}-5 =4-5 = -1\\\\f(-2) = (-2)^{2}-5 = 4-5 = -1[/tex]

f)

[tex]f(2) = -2^{2}+2 = -4+2 = -2\\\\f(-2) = -(-2)^{2}+(-2) = -4-2 = -6[/tex]