Question

Calcule distância do p a reta r nos sefuintes casos a)p(4,-5)r3x-4y+10=0

Answer 1

P(4,-5) , r: 3x - 4y + 10 = 0

a = 3, b = -4 , c = 10

x = 4 , y = -5

d = |Axo + Byo + C| / √(a² + b²)

d = |3.4 + (-5).(-4) + 10| / √(3)² + (-4)²

d = |12 + 20 + 10| / √9 + 16

d = |42| / √25

d = 42 / 5