Question

25 – Nos seguintes casos, calcule a distância do ponto P à reta r:
a) P(0,3) e 4x + 3y + 1 = 0
b) P(1,-5) e 3x – 4y – 2 = 0
c) P(3,-2) e 2x + y +6 = 0
d) P(6,4) e y – 2 = 0

Answer 1

a) 4.0 +3.3+1=0
0+9+1=10
b) 3.1 -4(-5) -2=0
3+20-2=21
c) 2.3-2+6=0
6-2+6=10
d) 4-2=2