Find four solutions of each Equation. write the solutions as ordered pairs.?

Question

y = 8x - 4

y = -x + 12

4x - 4y = 24

x - y = -15

y = 7x - 6

y= -3x + 8

y = 12

4x - 2y = 0

4x - y = 4

Answer 1

Graphing, unless it's done on a graphing calculator, can be tedious. An easy solution is to let x = 0, then solve for y. This is tantamount to letting y = b, since the x term then drops out of the equation. You can do the same for y and solve for x. That gives you two ordered pairs, (0, y), (x, 0). Then pick two other values, say x = ± 1. Then solve for y when x assumes those two values. You could also let y = ± 1, and solve for x when y assumes those values. That gives you four ordered pairs and four solutions to the equation.

Answer 2

first you can graph all the equations and find which points they go through and do it that way

TO DO THAT YOU PUT INTO Y=MX+B FORM
MX IS THE SLOPE AND B IS THE Y POINT