$\left| \begin{array} { c c c }
x & y & 1 \
A & - 1 & 1 \
3 & 2 & 1
\end{array} \right| = 0$
represents the equation of a line. Find the value of A so that the line passes through the point (10,5).

Question

$\left| \begin{array} { c c c } 
x & y & 1 \
A & - 1 & 1 \
3 & 2 & 1
\end{array} \right| = 0$
 represents the equation of a line. Find the value of A so that the line passes through the point (10,5).

Quizplus · Accepted Answer

The Answer of $\left| \begin{array} { c c c } 
x & y & 1 \
A & - 1 & 1 \
3 & 2 & 1
\end{array} \right| = 0$
 represents the equation of a line. Find the value of A so that the line passes through the point (10,5).

∣xy1A−11321∣=0\left| \begin{array} { c c c } x & y & 1 \\A & - 1 & 1 \\3 & 2 & 1\end{array} \right| = 0​xA3​y−12​111​​=0

$\left| \begin{array} { c c c } x & y & 1 \\A & - 1 & 1 \\3 & 2 & 1\end{array} \right| = 0$