solvefor x,m=(y2-y1)/(x2-x1)

解

解く

x, m = \frac{y ^{2} - y ^{1}}{x ^{2} - x ^{1}}

x = \frac{m + m ^{2} - 4 m ( y - y ^{2} )}{2 m}, x = \frac{m - m ^{2} - 4 m ( y - y ^{2} )}{2 m}; m \neq = 0

解答ステップ

m = \frac{y ^{2} - y ^{1}}{x ^{2} - x ^{1}}

簡素化

\frac{y ^{2} - y ^{1}}{x ^{2} - x ^{1}} : \frac{y ^{2} - y}{x ^{2} - x}

m = \frac{y ^{2} - y}{x ^{2} - x}

以下で両辺を乗じる:

x^{2} - x

m (x^{2} - x) = y^{2} - y

解く

m (x^{2} - x) = y^{2} - y : x = \frac{m + m ^{2} - 4 m ( y - y ^{2} )}{2 m}, x = \frac{m - m ^{2} - 4 m ( y - y ^{2} )}{2 m}; m \neq = 0

x = \frac{m + m ^{2} - 4 m ( y - y ^{2} )}{2 m}, x = \frac{m - m ^{2} - 4 m ( y - y ^{2} )}{2 m}; m \neq = 0