annabravo62 annabravo62
  • 27-07-2016
  • Mathematics
contestada

Find the distance between the pair of parallel lines
y=4x+4
4x-y=1
Select one:
a. d=1.64
b. d=1.47
c. d=1.21
d. d= 1.28

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 02-08-2016
distance between two parallel lines is given by [tex] \frac{|b_2 - b_1|}{ \sqrt{ m^{2} +1} } = \frac{|-1 - 4|}{ \sqrt{ 4^{2} +1} } = \frac{|-5|}{ \sqrt{ 16 +1} } = \frac{5}{ \sqrt{17} } =1.21[/tex]
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