Question

Line through the points (–2, 6) and (4, 8) is perpendicular to the line
through the points (8, 12) and (x, 24). Find the value of x.

Answer 1

@terenzreignz

Answer 2

Get the slope of the first line...
\[\huge m_1=\frac{2}{6}=\frac13\]
And now
\[\huge m_2=\frac{12}{x-8}=-3\]
since -3 is the negative reciprocal of 1/3, making these two lines perpendicular

Answer 3

Thankyou Sir