jennylopez465
jennylopez465 jennylopez465
  • 15-11-2018
  • Mathematics
contestada

What is the equation of a line that has a slope of -1/4 and passed through the point ( -3, -2 )

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gmany
gmany gmany
  • 15-11-2018

The slope-intercept form of line:

[tex]y=mx+b[/tex]

We have the slope [tex]m=-\dfrac{1}{4}\to y=-\dfrac{1}{4}x+b[/tex] and the point (-3, -2). Substitute:

[tex]-2=-\dfrac{1}{4}(-3)+b[/tex]

[tex]-2=\dfrac{3}{4}+b[/tex]       subtract 3/4 from both sides

[tex]-2\dfrac{3}{4}=b\to b=-\dfrac{11}{4}[/tex]

Answer: [tex]y=-\dfrac{1}{4}x-\dfrac{11}{4}[/tex]

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