Gradien garis yg melalui titik(9,-7)dan(3,8) adalah......

m = ∆y/∆x
m = 8-(-7)/3-9
m = -15/6

m=y2-y1 per x2-x1
m=8-(-7) per 3-9
m= 15 per -6
m= -2 ½

#semogabermanfaat^__^
#maafkalausalah