I need help with dis plz

Answer:
its b because the slope is 7. to find the slope, use any 2 points and use the formula m=[tex]\frac{y2-y1}{x2-x1}[/tex]
So lets choose points 1 and 2
m=[tex]\frac{35-21}{5-3}[/tex]=[tex]\frac{14}{2}[/tex]=7