Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
ali03
Lv 5
ali03 asked in Education & ReferenceHomework Help · 1 decade ago

3x+12=0 help solve please?

grapg each equation in a rectangular coordinate system

3 Answers

Relevance
  • Ms. Worth
    Lv 7
    1 decade ago
    Favorite Answer

    Graph 3x + 12 = 0

    1) Solve for x

    3x + 12 = 0

    Subtract 12 from both sides

    3x = - 12

    Divide both sides by 3

    x = - 4

    2) Now graph the line x = - 4

    For all values of y, x = - 4

    That means that this is a line going straight up (and down), parallel to the y axis, and crossing the x axis back at - 4.

    _._|_._._._║_._

    _._|_._._._║_._

    _._|_._._._║_._

    _._|_._._._║_._

    _._|_._._._║_._

    _._|_._._._║_._ x axis

    ..- 4...........0

  • Anonymous
    1 decade ago

    3x+12=0

    3x+12-12=0-12

    3x+0=-12

    1/3 ● 3x = -12 ● 1/3

    1x = -12/3

    x = -4

    Hope I helped :-)

  • Anonymous
    1 decade ago

    idk wut a rectangular coordinate system is, but i know for sure (x= -4)

    3(-4)+12=0

    (-12)+12=0

Still have questions? Get your answers by asking now.