Creado por Angel Thomas
hace más de 8 años
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Pregunta | Respuesta |
CO-ORDINATE GEOMETRY | CH 20 |
( , ) | (x,y) |
Midpoint | (add xs , add ys) -------------------- 2 |
Distance | (x2 -x1)2 + (y2-y1)2 |
Slope | m=y2-y1 --------- x2-x1 |
TO CHECK IF A POINT IS ON THE LINE | substitute point into equation: LHS =RHS |
SKETCH A LINE WITH 1 POINT AND A SLOPE | rise -------- run |
SKETCH THE LINE X+3Y=6 | x intercept y intercept |
Y=MX+C | m= slope c= y intercept |
FIND EQUATION IF GIVEN A POINT AND A SLOPE | y-y1-m(x-x1) |
FIND EQUATION GIVEN 2 POINTS | find slope y2-y1 --------- x2-x1 then y-y1-m(x-x1) |
PARALLEL LINES PERPENDICULAR LINES | parallel= same perpendicular= turn fraction upside down and change sign |
FIND SLOPE IF GIVEN AX+BY+C=0 | slope= -no. in front of x ------------------------- no. in front of y |
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