Question

5- Qual é a equação da reta dos pontos A(1,2) e B( -3, 5)
1 ponto
a) 4x + 3y + 11=0
b) -4x -3y -11 = 0
c) x + y + 11 = 0
d) -x - y - 11 = 0
e) -3x -4y + 11 =0

Answer 1

$\boxed{\begin{array}{l}\sf a=\dfrac{5-2}{-3-1}\\\sf a=\dfrac{3}{-4}=-\dfrac{3}{4}\\\sf y=2-\dfrac{3}{4}(x-1)\\\sf y=2-\dfrac{3}{4}x+\dfrac{3}{4}\\\sf 4y=8-3x+3\\\sf -3x-4y+11=0\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~e}}}}\end{array}}$