Saturday, May 9, 2009

Ax+by=c (standard form of a line)?

I don't understand standard form. Could someone please tell me what the slope of a line would be (I know it's something over something...) and what the y-intercept would be? ...Like, in terms of a and b and c and x and y... yeah....?





Oh, and what do the x and y stand for? Are they just the x and y values of any given point on the line the equation is describing?





Thanks!

Ax+by=c (standard form of a line)?
The slope is the opposite of a/b





The y intercept is c/b





Example: 2x + 3y = 5


Slope= -2/3


Y int= 5/3





The x and y are just x and y values that are on the line.
Reply:Ax + By = C (Standard Form) can be put into y = mx + b (Slope-Intercept Form). You can do this by isolating the "y." The "ax" is slope and "c" is the y-intercept. I hope this helped. =]
Reply:The slope m, when converting from standard form is -a/b. The y-intercept is c/b. you can see this clearly by subtracting ax from both sides and dividing both sides by b.


No comments:

Post a Comment