Question

dada a função f(x)=4ײ-1 calcule

a)f(2)=

b)f(-1)=​

Answer 1

Resposta:

a) f(2)= 4. (2)² - 1

f(2)= 16 - 1

f(2) = 15

b) f(-1)= 4.(-1)² - 1

f(-1)= 4 . 1 - 1

f(-1)= 4 - 1

f(-1)= 3