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#5 2012-08-06 19:52:45
- bob bundy
- Moderator
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Re: point-gradient form of a linear equation
OK.
I did add some more to post 3 but I'll show you how to get the y intercept without knowing that equation.
As the gradient is minus 4, that will mean for every 1 you step left in the x direction, the y coordinate will go up by 4.
So step back a few points like this:
(5,0) ... (4,4) ... (3,8) ... (2,12) ... (1,16) ... (0,20)
So the y intercept is (0,20)
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei