SOLUTION: Find a linear function that passes throught the point (-3, 8) and is perpendicular to 2x - 5y = 8.

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Question 4687: Find a linear function that passes throught the point (-3, 8) and is perpendicular to 2x - 5y = 8.
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
I have written several Lessons on this site on Linera algebra. They explain this type of question for you.

If your line is perpendicular to the quoted equation, then their 2 gradients (m and n) will satisfy mn=-1.

So, do the following:

1. find the gradient of the quoted line.
2. Find the gradient of your line using mn=-1.
3. put that value into y=mx+c.
4. Find the value of c by also putting into the equation, the point you have been given (-3,8).

jon.