How do you find the slope and intercept of 3x+4y=7?

1 Answer
Dec 30, 2015

slope = -3/4
y intercept = 7/4

Explanation:

3x + 4y = 7
4y = -3x +7
y =-3/4x + 7/4

comparing with y=mx+c
we get,
m= slope = -3/4

c = y intercept = 7/4

3x +4y = 7

3/7x + 4/7y = 7/7

3/7x + 4/7y = 1

x/ (7/3) + y/ (7/4) = 1

comparing with x/a + y/b = 1
we get,
x intercept = 7/3
y intercept =7/4