JDuncan31 JDuncan31
  • 17-04-2019
  • Mathematics
contestada

Write the equation of a line parallel to y= 2x + 2 that passes through the point (-1,-7). Show your work.

Respuesta :

gmany
gmany gmany
  • 23-04-2019

Answer:

[tex]\large\boxed{y=2x-5}[/tex]

Step-by-step explanation:

The slope-intercept form of an equation of a line:

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

Parallel lines have the same slope. Therefore if given line is

[tex]y=2x+2[/tex]

then the slope of our line is [tex]m=2[/tex].

We have the equation:

[tex]y=2x+b[/tex]

The line passes through (-1, -7). Put the coordinsted pf the point to the equation:

[tex]-7=2(-1)+b[/tex]

[tex]-7=-2+b[/tex]          add 2 to both sides

[tex]-5=b\to b=-5[/tex]

Finally:

[tex]y=2x-5[/tex]

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