What is the rate of change for this table of data?

Which of the following describes how to translate the graph y = xi to obtain the graph of y = x - 11 - 12 1 unit left and 1 unit down 1 unit left and 1 unit up 1 unit right and 1 unit down 1 unit right and 1 unit up

If the tip varies directly with the number of guest which equation represents between the tip,t, and the number of guest,g?

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)