Question 5 Which of the following graphs is a function of X?
10
S
OA
-10
-6
4
-2
-2
2
6
8
10
-8
10
8-
6
4-
2
B
-10-8
-6
-4
2
2
4
6
8
10

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.