2.1 - 2016 Q10 Answers
10) The points P (0, 2) and Q (3, 7) lie on the line l1 , as shown in Figure 2.
The line l2 is perpendicular to l1 , passes through Q and crosses the x-axis at the point R, as shown in Figure 2.
Find:
A) an equation for l2 , giving your answer in the form ax + by + c = 0, where a, b and c are integers (5)
B) the exact coordinates of R (2)
C) the exact area of the quadrilateral ORQP, where O is the origin (5)
The line l2 is perpendicular to l1 , passes through Q and crosses the x-axis at the point R, as shown in Figure 2.
Find:
A) an equation for l2 , giving your answer in the form ax + by + c = 0, where a, b and c are integers (5)
B) the exact coordinates of R (2)
C) the exact area of the quadrilateral ORQP, where O is the origin (5)
Answers
Click here to see a detail description in the mark scheme of how to work out part C.