Question

seja a reta x determinada pelos pontos A (p,3)e B(2,6) e coeficiente angular -2 determine p​

Answer 1

$\begin{array}{l}m=\frac{\Delta y}{\Delta x} \Longrightarrow \frac{6-3}{2-p} =-2\Longrightarrow \\\\\Longrightarrow -4+2p=3\Longrightarrow 2p=7\Longrightarrow \boxed{p=\frac{7}{2}}\end{array}$