Answer
Infinitely Many Solutions
See graph below
Work Step by Step
Given the system of equations:
1. $2x - 7y = 28$
2. $y = 2/7 x - 4$
It asks to find all solutions and to graph.
Substitute $y = 2/7x - 4$
$2x - 7(2/7x - 4)= 28$
$2x - 2x + 28 = 28$
$28 = 28$
Infinitely Many Solutions
See graph below.
The red line is graph 1; the blue line is graph 2
Only one line is present because there are infinitely many solutions.
