SOLUTION: I do not know how to solve 2x+4+y=0. I missed the class yesterday because of a funeral & now I'm struggling. Can you explain how to solve the equation? Thank you.

Algebra ->  Rational-functions -> SOLUTION: I do not know how to solve 2x+4+y=0. I missed the class yesterday because of a funeral & now I'm struggling. Can you explain how to solve the equation? Thank you.      Log On


   

Question 999766: I do not know how to solve 2x+4+y=0. I missed the class yesterday because of a funeral & now I'm struggling. Can you explain how to solve the equation? Thank you.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
2x%2B4%2By=0....here you have a linear function and its graph is a line
to graph a line you need two points that lie on a line
so, choose x-intercept and y-intercept; that is easiest way to find two points that lie on a line
x-intercept is at (x,0)
so, set y=0 and solve for x
2x%2B4%2B0=0
2x%2B4=0
2x=-4
x=-4%2F2
x=-2

x-intercept is at (-2,0)
now find
y-intercept which is at (0,y)
so, set x=0 and solve for y
2%2A0%2B4%2By=0
4%2By=0
y=-4

y-intercept is at (0,-4)

now, plot these points and draw a line through: