Question

Verifique qual ponto pertence à reta de equação 2x + 3y – 10 = 0
A) (- 2, 0)
B ) ( 2, - 2)
C) ( 2 , 2)
D) (-2, -2)
E) (0, -2)

Answer 1

Explicação passo-a-passo:

2x+3y=10 (verificando )

A) (- 2, 0)

2.(-2)+3.(0)=10

-4+0=10

-4 ≠ 10 ( nao pertence )

B ) ( 2, - 2)

2.(2)+3.(-2)=10

4-6=10

-2≠ 10 ( nao pertence)

C) ( 2 , 2)

2.(2)+3.(2)=10

4+6=10

10=10 ( pertence )

D) (-2, -2)

2.(-2)+3.(-2)=10

-4-6=10

-10≠10 ( nao pertence )

E) (0, -2)

2.(0)+3.(-2)=10

0 -6=10

-6≠10 ( nao pertence)

Resposta :

Alternativa C