Question

solve each system by graphing. tell weather the system has one solution, infinitely many solutions or no solution

x + y = 5

x + y = -2

Answer 1

I think you mean whether. Unless, of course, you're talking about rain, snow, heat, and so on.

Answer 2

Solve each equation for y

Answer 3

CASE 1
--1 solution
--lines intersect
--system is consistent
--equations are independent

Answer 4

CASE 2
-- no solution
-- lines are parallel
--system is inconsistent

Answer 5

CASE 3
-- infinite solutions
-- lines coincide
-- system is consistent
-- equations are dependent