Answer:
Solution given:
[tex](x_1,y_1)=(1,2)[/tex]
[tex](x_2,y_2)=(10,10)[/tex]
now
slope [m]=[tex]\frac{y_2-y_1}{x_2-x_1}=\frac{10-2}{10-1}=\frac{8}{9}[/tex]
let's find the slope of line passing through the given points :
