CO.N//.S7.S 



II I, (nation of straight line through given point and in given 



ction . . 88 



45. Equation of a >lar coordinate-. . . 04 



48. Equation of loons traced by a moving point .... 88 



- : second method . . . 



Hie conic sections ... 07 



40. The use of curves in applied mathematics 78 



OHAR1 



Tur. STRAIGHT LIXK. > FIRST DRO 



r By + C SB 



Recapitulation 81 



ii^iit line through two given points . 81 



n-i.t line in terms of the intercepts whit 

 makes on the coordinate axes .... .88 



68. Equation of straight line through a given point and in a given 



direction 84 



"I. I , . r of straight line in terms of the perpendicular from 

 the origin upon it, and the angle which that perpendicular 



makes with the x-axis 80 



65. Normal form of equation of straight line : second method . 87 



68. Summary 88 



of the first degree between two variables has 



ito locus a straight line 80 



68. Reduction of the general equation A* 4 By + C = to the 

 standard forms. Determination of a, ft, m, ;>. and a in terms 

 of .!,/*, and C 



60. To trace the locus of an equation of the first degree . . . 04 

 00. Special cases of the equat straight line A x+ By +C=0 06 



61. To tind the angle made by one straight line with another . . 07 



02. < . that two lines are parallel or perpendicular . . 08 



03. Line which makes a given angle with a given line . . .101 



04. The distance of a given point from a given line . 105 



05. Bisectors of the angles between two given lines . . .106 

 00. The eqnat lint** . ... 110 



07. i that the general quadratic Bipiatiiuii may be factored 1 1 1 



08. Equations of straight lines : coordinate axes oblique . 116 

 00. Equations of straight lines : polar coordinates . . . .118 



