Question

Which system of linear inequalities is represented by the graph?

Answer 1

Answer: The first and fourth graphs are identical.

Both
`y \geq (1)/(5) x +1` and
`y\leq -2x-4`

For the second graph
`y \geq (1)/(5) x +1` and y ≤ -2x + 4

For the third graph
`y \geq (1)/(5) x +1` (again!) and y ≤ 2x + 4

Explanation:

The differences are mostly in the y-intecepts of the second equation in each system. Notice the shift from -4 to +4 Also notice the change from negative slope to positive slope.