y is less than or equal to-4x +7 2y - 7x is greater than or equal to -18 A. Graph the system of linear inequalities. B. Explain how you find which region corresponds to the solution

Question

It's a free response question for my algebra test

Answer 1

yu hav 2 strate lines:

1...y=-4x+7

2...y=3.5x-9

yu want area belo line 1 & abuv line2

find weer 2 lines meet...y=3.5x-9=7-4x...7.5x=16, so x=16/7.5,  x=2.133333333333333...

and y=7.46666666-9...y=-1.5333333

the point (2.13333...,-1.53333)

If yu thank av y-axis as the left edj, yu hav a triangel with vertikal line along y-axis

& 2 sides that gotu the point (2.13333..,-1.533333)