Question

Which statement best describes the graph of the system of equations? x-y=1, y-x=1

Answer 1

Answer:

             Parallel lines

Step-by-step explanation:

x - y = 1                                       y - x = 1

- y = -x + 1                                   y = x + 1  ⇒ m₂ = 1, b₂ = 1

÷(-1)     ÷(-1)

y = x - 1 ⇒ m₁ = 1, b₁ = -1

m₁ = m₂   and   b₁ ≠ b₂ means that the lines described by these equations are parallel