Which system is the solution of the graph?

y≥-4

y≤-x+4

Step-by-step explanation:

We can see the lines are whole so the equations will use ≤ or ≥.

We see that it is shaded about y=-4, so the equation is y≥-4

We can see the other line has a slope of -1 and a y-intercept of 4 and is shaded below the line so the equation is y≤-x+4

3

step-by-step explanation:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.