Question

sejam as retas f(x)=(2-a)x-2e g(x)=4x+2 qual deve ser o valor de a para que as retas sejam paralelas?​

Answer 1

Resposta:

G(x) = 4x + 2

0 = 4x + 2

4x = -2

X = -2/4 = -1/2

F(x) = (2-a)x -2

0 = -2/2 + 1/2a -2

1/2a = -2/2 -2 -> -2 = -2/1 x 2 = -4/2

1/2a = -2/2 -4/2

1/2a = -6/2

a = -6/2 / 1/2

a = -12/2

a = -6