What is the equation of the line shown in the graph? write the equation in standard form?

The line is completely horizontal. Every point on this line has a y coordinate of -3. The x value is allowed to be anything you want. In this case x = -2 and x = 3 is shown for the two points.

Since y is fixed to always being -3, this means y = -3 is the equation. If you want it to fit standard form then you can write it as 0x+1y = -3

Notice how 0x+1y = -3 matches up with Ax+By = C where
A = 0
B = 1
C = -3

Simplifying 0x+1y = -3 leads back to y = -3

10feet apart then both