rossipankey
rossipankey rossipankey
  • 10-09-2020
  • Mathematics
contestada

Which is an equation of the.line with a slope of 1/4 and a y-intercept if -2?

A. x-4y=8
B. x+4y=-8
C. 4x+y=-2
D. 4x-y=2

Respuesta :

ZJSG09112007
ZJSG09112007 ZJSG09112007
  • 10-09-2020

Answer:

A. x-4y=8

Step-by-step explanation:

Slope = [tex]\frac{1}{4}[/tex]

y-intercept = -2

In y=mx+b

m = slope

b = y-intercept

Just replace m with 1/4 and b  with -2

[tex]y = \frac{1}{4} x -2\\[/tex]

Multiply through by 4 and re-arrange

[tex]4(y=\frac{1}{4} x -2)\\\\4y =x -8\\0 =-4y +x-8\\8 =-4y+x\\\\x -4y =8[/tex]

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