-4 is the x intercept.as in the values on the x-axis
If <span>y = -x + 7, and (-1,y) is on the graph, then the following is true: y=-(-1) + 7, or y=8.
Thus, y = a0 = 8.</span>
ANSWER: 180°
EXPLANATION: 360-180=180
C: tan 50 degrees that's your answer