Use the substitution method to solve the system of equations. choose the correct ordered pair.

y = 3x - 4
x = 9

a. (9, 31)
b. (1, -1)
c. (0, -4)
d. (9, 23)

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)