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#1 2018-02-21 15:53:19
- Hannibal lecter
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- Registered: 2016-02-11
- Posts: 392
what is the Value of C?
Hi, what is the value of C ? how to find it in the following picture :
Wisdom is a tree which grows in the heart and fruits on the tongue
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#2 2018-02-21 20:04:52
- Bob
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- Registered: 2010-06-20
- Posts: 10,143
Re: what is the Value of C?
Hi Hannibal lecter,
As you know two points you can get the equation of the straight line in the form y = mx + d. Substitute that value of y into y = x squared to get a quadratic in x. It should be easy to factorise as you know (x-1) is one factor. The other will give the x coordinate of C.
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
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