When you add a positive number to the equation after the function the graph moves up and by subtracting it moves down.
When you add a positive number to X before performing the function the graph moves to the left and when you subtract it moves to the right.
But if you multiply by a negative one it flips over to a roof.
When you add a positive number to X before performing the function the graph moves to the left and when you subtract it moves to the right.
But if you multiply by a negative one it flips over to a roof.