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mathleteggg
Apr 22, 2009, 05:47 PM
1. Find a function to represent the set of all points equidistant from the point (-1,3) and the line y=7

2. Find a relation to represent the set of all points equidistant from the point (2,3) and the line x=-1

I don't get this at all and cannot find help online or in my textbook
Any help would be sooo much appreciated
Thank You:D

Unknown008
Apr 22, 2009, 07:20 PM
Ok, have you tried drawing the graphs, the point and find a region equidistant from the line and the point?

Here's your line and point. I labelled your line y=7 a, your point (-1, 3) A and the function b

Unknown008
Apr 22, 2009, 07:25 PM
You'll see that any point on the line y=5 will he equidistant from both the line y=7 and the point (-1, 3)

In fact, what is it by calculations?

You find the equation of the perpendicular line that passes through the line y = 7 and the point (-1, 3). You then find the midpoint that line where is crosses your line and your point. You'll obtain (-1, 5). You now only need to write the equation of a line, parallel to your original line, passing through the midpoint you just got.

Now try doing the second question.