Need help with these math questions pls help me will mark brainiest.
 
											 
											Answer:
9) D.
10) Rate of change: 50
11) A.
Step-by-step explanation:
9)
Non-linear lines are not straight.
10) [tex]\frac{Rise}{Run}[/tex] = [tex]\frac{400}{8} = 50[/tex]