What is the constant in the expression?

The constant is 9. There is nothing attached to it.

Yeah the answer is 9 cause it has no variable attatched 2 it 

Where the white dots are is where your points should be plotted.a translation is simply just moving something from one place to another. in this case, you would move each plot point of the original shape 2 units up, and 5 units to the left.