Question

4. Qual o coeficiente angular da reta que passa pelos pontos:
a) (1, 2) e (3, 4)
b) (4, 3) e (2, 1)
c) (0, 2) e (2, 0)
d) (1, 1) e (3, 3)

Answer 1

Explicação passo-a-passo:

a)(1, 2) e (3, 4)

a=∆y/∆x=(4-2)/(3-1)=2/2= 1

b) (4, 3) e (2, 1)

a=∆y/∆x=(1-3)/(2-4)=-2/-2=1

c) (0, 2) e (2, 0)

a=∆y/∆y=(0-2)/(2-0)=-2/2=-1

d) (1, 1) e (3, 3)

a=∆y/∆x=(3-1)/(3-1)=2/2= 1