Respostas

2014-08-27T02:00:16-03:00
Coef. angular: 
a=y2-y1 / x2-x1 
a=14-5 / 4-1 
a=9/3 
a=3 >>> 

y-y1=a.(x-x1) 
y-5=2.(x-1) 
y=2x-2+5 
y=2x+3........coef. linear (b=3) 

resp: a+b=2+3=5

1 1 1