NumericalModerate1.5 marks
8(b)
The vertices of a DABC are A(3, 8), B(–l, 2) and C(6, –6), Find:
Equation of a line perpendicular to BC and passing through A.
Topic: Slope and equation of a line
Previous-year question practice database
Answer
Exam answer
7x − 8y + 43 = 0
Explanation
Slope of line perpendicular to BC is ; Line passing through A(3, 8) Equation is: y − 8 = (x − 3) 8y − 64 = 7x − 21 7x − 8y + 43 = 0
More from Equation of a Line
Find the equation of a line whose y-intercept is 6 and is parallel to x-axis.2026Write the co-ordinates of points A, B and C2026Find the equation of a line passing through the mid-point of AC and parallel to AB.2026The equation of the line passing through origin and parallel to the line 3x + 4y + 7 = 0 is:2025find the slope of sides CB and DA and verify that they represent parallel lines.2025find the equation of the diagonal AC.2025