Flashcards
CO-ORDINATE GEOMETRY
Cards in this deck (13)
- 1CO-ORDINATE GEOMETRYCH 20
- 2( , )(x,y)
- 3Midpoint(add xs , add ys)
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2 - 4Distance(x2 -x1)2 + (y2-y1)2
- 5Slopem=y2-y1
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x2-x1 - 6TO CHECK IF A POINT IS ON THE LINEsubstitute point into equation:
LHS =RHS - 7SKETCH A LINE WITH 1 POINT AND A SLOPErise
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run - 8SKETCH THE LINE X+3Y=6x intercept
y intercept - 9Y=MX+Cm= slope
c= y intercept - 10FIND EQUATION IF GIVEN A POINT AND A SLOPEy-y1-m(x-x1)
- 11FIND EQUATION GIVEN 2 POINTSfind slope
y2-y1
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x2-x1
then y-y1-m(x-x1) - 12PARALLEL LINES PERPENDICULAR LINESparallel= same
perpendicular= turn fraction upside down and change sign - 13FIND SLOPE IF GIVEN AX+BY+C=0slope=
-no. in front of x
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no. in front of y