JanoahV46269 JanoahV46269
  • 28-10-2022
  • Mathematics
contestada

Write the equation of the line that passes through (4,-2) and (-4,-4)A) y = 1/4x - 3B) y = 3/4x - 5C) y = - 2D y = - 3/4x + 1

Respuesta :

LemarR750807 LemarR750807
  • 28-10-2022

Let:

[tex]\begin{gathered} (x1,y1)=(4,-2) \\ (x2,y2)=(-4,-4) \end{gathered}[/tex]

The slope of the line is given by:

[tex]m=\frac{y2-y1}{x2-x1}=\frac{-4-(-2)}{-4-4}=\frac{-2}{-8}=\frac{1}{4}[/tex]

Using the point-slope equation:

[tex]\begin{gathered} y-y1=m(x-x1) \\ y+2=\frac{1}{4}(x-4) \\ y+2=\frac{1}{4}x-1 \\ y=\frac{1}{4}x-1-2 \\ y=\frac{1}{4}x-3 \end{gathered}[/tex]

Answer:

A) y = 1/4x - 3

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