Answer:
4
Step-by-step explanation:
5 smiles - 1 = 4 smiles
First we need to use two point to find the slope (m)
m=(y2-y1)/(x2-x1)
X1=-8
Y1=-4
X2=6
Y2=10
m=(10-(-4))/(6-(-8))
m=(10+4)/(6+8)
m=14/14
m=1
Eq of the line formula :
Y-y1=m(x-x1)
Y-(-4)=1(x-(-8))
Y+4=x+8
Y=x+4