Thursday, May 2, 2013

Convert the equation 3x - 4y - 12 = 0, into slope intercept form and intercept-intercept form?

The equation of a line ax + by + c = 0 can be converted into
slope-intercept form as y = m*x + c where m is the slope and c is the y-intercept. If the line is
converted to the form x/a + y/b = 1, it is in intercept-intercept form with a and b being the x
and y intercepts respectively.


The line we have here is 3x - 4y - 12
= 0


3x - 4y - 12 = 0


=> 4y = 3x
- 12


=> y = (3/4)x - 3


the slope
is 3/4 and the y-intercept is -3


3x - 4y - 12 =
0


=> 3x - 4y = 12


=>
(3/12)x + (-4/12)y = 1


=> x/4 - y/3 =
1


The x intercept is 4 and the y-intercept is
-3


The equation in the slope-intercept form is y =
(3/4)x - 3 and in the intercept-intercept form is x/4 - y/3 =
1

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