1. The x-intercept of a line is -3. The y-intercept of a line is 6. What is the slope of the line?
2. What is the equation in slope-intercept form of the line described in Exercise 1?
can you please explain and answer it?? im having lots of trouble with this.
it's urgent... thanks a lot.. :)
math - Reiny, Sunday, May 3, 2009 at 8:33am
remember, an x-intercept of -3 is really the point (-3,0)
and a y-intercept of 6 is the point (0,6)
so slope of line = (6-0)/(0-(-3)) = 2
so in y = mx + b, m is the slope and b is the y-intercept, so just put the stuff in there
y = 2x + 6