I have the answer, but I am stuck in the middle of the problem Through (4,2) and (1,3) m= 3 - 2 / 1 - 4 = - 1/3 y - 2 = (-1/3)x (x-4) y - 2 = this is where I get stuck. I know the answer is y = (-1/3)x + 11/3
Follow Math Help Forum on Facebook and Google+
Originally Posted by Sammyj I have the answer, but I am stuck in the middle of the problem Through (4,2) and (1,3) m= 3 - 2 / 1 - 4 = - 1/3 y - 2 = (-1/3)x (x-4) y - 2 = this is where I get stuck. I know the answer is y = (-1/3)x + 11/3 I get a different answer. The general form is: Substituting values: Opening the bracket: Adding to both sides:
Thanks
Last edited by Sammyj; September 8th 2008 at 10:57 AM. Reason: error
How about through (1/2, 5/3) and (3, 1/16) (1/16) - (5/3) / (3) - (1/2) I understand how to do them until they are fractions. I know the answer is y = (2/3)x-2 but don't know how to work it out.
Originally Posted by Sammyj How about through (1/2, 5/3) and (3, 1/16) (1/16) - (5/3) / (3) - (1/2) I understand how to do them until they are fractions. I know the answer is y = (2/3)x-2 but don't know how to work it out. Your gradient is Use your normal apprach to find the equation. Substitute appropriate number into the general form, . EDIT: Sammyj, is your question posted correctly? The gradient is different to the answer that you posted.
View Tag Cloud