Answer:
see below
Explanation:
(c) Find y=4 on the y-axis. Follow the horizontal gridline at y=4 along (to the right) until you get to the blue line. Now trace down (vertically) until you get the x-axis and read the number. (x = 3)
(d) Find x=1 on the x-axis. Follow the vertical gridline at x=1 up until you get to the blue line. Now trace left (horizontally) until you get to the y-axis and read the number. (y = 2.6 or 2.7)