Question: It is difficult to graph a linear function by hand. One method that works if the x, y, and z-intercepts are positive is to plot the intercepts and join them by a triangle as shown in Figure; this shows the part of the plane in the octant where x ≥ 0, y ≥ 0, z ≥ 0. If the intercepts are not all positive, the same method works if the x, y, and z-axes are drawn from a different perspective. Use this method to graph the linear functions.
z = 2 - 2x + y