consider The following pair of equations the two equations are graft at what point do the lines representing the two equations intersect x + y = -2 y = 2x + 10 answers: (-4,2) (4,2) (-2,4) (2,4)
Mathematics · Middle School · Tue Nov 03 2020
llm
Answered on
For finding the interesting point we use-2 the substituting method
x + y = -2…..(1), x=-2-y
y = 2x + 10……(2)
Putting the value of x by equation(1) into (2)
y=2(-2-y)+10
Y=-4-2y+10
3y=6
y=2
By equation(1)
x=-2-2=-4
Answer.