What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 4 x + y - 1 = 0?

Answers:

A) 4x - y - 6 = 0
B) 4x + y - 6 = 0
C) 4x + y + 6 = 0

Question

08-09-2016
Mathematics

contestada

What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 4 x + y - 1 = 0?

Answers:

A) 4x - y - 6 = 0
B) 4x + y - 6 = 0
C) 4x + y + 6 = 0

Respuesta :

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apologiabiology apologiabiology · Answer 1 · 2016-09-17T02:47:36+02:00

apologiabiology apologiabiology

17-09-2016

in form ax+by=c
slope=-a/b

paralalell lines have same slope

find slope of 4x+y-1=0
get to ax+by=c forom
add 1 o both sides
4x+1y=1
slope=-4/1=-4

so
a point is (1,2) and the slope is -4
in point slope form
y-y1=m(x-x1)
where m=slope and (x1,y1) is a given point

(x1,y1)
(1,2)
slope=-4
y-2=-4(x-1) is equation
or
y=-4x+6

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What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 4 x + y - 1 = 0? Answers: A) 4x - y - 6 = 0 B) 4x + y - 6 = 0 C) 4x + y + 6 = 0

Respuesta :

Otras preguntas

What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 4 x + y - 1 = 0?

Answers:

A) 4x - y - 6 = 0
B) 4x + y - 6 = 0
C) 4x + y + 6 = 0