Question

Me ajudem!!!
questão 3

Answer 1

Resposta:

a) x= -2, então :

2*(-2) -3y + 6 =0

-3y=-2

y=2/3

portanto ponto A : (-2,2/3)

b) qdo r intercepta x, y=0. portanto,

2x-3*0+6=0

2x=-6

x=3

portanto ponto B: (3,0)

c)r intercepta y, x=0:

2*0-3y+6=0

-3y=-6

y=2

portanto ponto C: (0,2)

d)x=y

2x-3y+6=0

x=y

2y-3y+6=0

-y=-6

x=y=6

Ponto D: (6,6)

e)x=-y

2x-3*(-x)+6=0

2x+3x+6=0

5x=-6

y=x=-6/5

Ponto E: (-6/5,-6/5)