Answers

2016-07-04T08:14:12+08:00
Slope intercept form ;
y=mx+b
@(6,4); slope m=1;
4=1(6) +b;
b= -2
straight line equation in a slope form;

y=x-2; when absissa; x=0
then; 
y=-2..ordinate
@ pt.2 ( 0,-2)
checking:

(P1P2)^2= (6-0)^2 +[(4-(-2)]^2;
 =72 units;
@PT3 (6,-2)

c^2= y^2 +x^2: c^2=(P1P2)^2;
72= (6)^2+(-6)^2;
72=72



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