Find three solutions to each equation then graph the solution set - 2x+y=1

Question

Mathematics

Annabelle Heath

9 December, 16:05

Find three solutions to each equation then graph the solution set - 2x+y=1

+5

Answers (1)

Know the Answer?

Zachariah Jacobson · Answer 1

First Solution

-2x + y = 1

-2x + 2x + y = 1 + 2x

y = 1 + 2x

Second Solution

-2x + y = 1

-2x + y - y = 1 - y

-2x = 1 - y

-2 - 2

x = - 0.5 + 0.5y

0.5 + x - x = - 0.5 + 0.5 - x + 0.5y

0.5 = - x + 0.5y

-0.5y - 0.5 = - x + 0.5y - 0.5y - 0.5

2 · (-0.5y) = 2 (-x - 0.5)

y = - 2x - 1

Third Solution

-2x + y = 1

-2x + y - 1 = 1 - 1

-2x + y - 1 = 0

-2x + 2x + y - 1 = 2x

y - 1 = 2x

y - 1 + 1 = 2x + 1

y = 2x + 1