Question

Calcule o coeficiente angular das retas de equações:
a) 3x+4y-7=0

b) -6x+8y+3=0

c) x+y-3=0

d) 5x- 8y+7=0

e) x+y=1
3 4

f) x=3t-1 e y=t+2
"""" a ``````````` b

Answer 1

Boa noite Viihlira

a) 3x + 4y - 7 = 0 

4y = -3x + 7
y = (-3x + 7)/4
a = -3/4

b) -6x + 8y + 3 = 0

8y = 6x - 3
y = (6x - 3)/8
a = 3/4

c) x + y - 3 = 0

y = -x + 3
a = -1 

d) 5x - 8y + 7 = 0

8y = 5x + 7
y = (5x + 7)/8
a = 5/8 

e) x/3 + y/4 = 1

4x + 3y = 12
3y = 12 - 4x
y = (12 - 4x)/3
a = -4/3

f) x = 3t - 1 e y = t + 2

t = y - 2
x = 3y - 6 - 1
3y = x + 7
y = (x + 7)/3
a = 1/3