Question

Calcule o coeficiente angular das retas de equação.
a) 3x-4y+3=0
b)2x-3y-6=0
c)2x-3y-13=0
d) x-y+1=0
e) - x/4 + y/3=1
f) x=2t+2   y=t-1

Answer 1

 

a) 3x-4y+3=0  => 3x + 3 = 4y  => a= 3/4

b)2x-3y-6=0 =>  2x - 6 = 3y    => a = 2/3

 

c)2x-3y-13=0     2x - 13 = 3y  => a = 2/3

 

d) x-y+1=0     x + 1 = y  =>  a = 1

 

e) - x/4 + y/3=1  -x/4 +1 = y/3  =>  a = - 3/ 12       faça o mmmc = 12

 

f) x=2t+2   y=t-1  x=2(y + 1) => x = 2y + 2 => x - 2 = 2y  => a = 1/2