I NEED help with this please!!!

Answer:
option a
option b
Step-by-step explanation:
15) m = slope
m= [tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex]
m= [tex]\frac{2 - 2}{6 -(-3) }[/tex]
m= [tex]\frac{2 - 2}{6+3}[/tex]
m=0
16) y+1=-2x-3
2x+y=-3-1
2x+y=-4