Bailey, Frederick H. (Frederick Harold), 1865- · Boston, London, Ginn & Co. · leaf 64
same ratio, what is true of theresulting system of lines ? How is the line situated for which a is finiteand b infinite ? Througli what quadrants in the plane will the line pass,for which a and b are botli positive; for which a is negative and b ispositive ? What will be the values of a and b for… … C.«<r-5^. ci^ Fic. 28? Let AB be the given line, drawn through D perpendicularto OD. Then OD will be the normal to the line from theorigin, and the length of OD, denoted by p, will be the normaldistance of the line from the origin. Denote the angle XODby a. Let P (x, y) be any point of the line.…
Geometry, Analytic
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