5.7.2 The Straight Line, SPM Paper 2

Question 4: In the diagram above, PQRS is a parallelogram. Find (a)  the gradient of SR, (b) the equation of QR, (c)  the x-intercept of QR. Solution: (a) PQ is parallel to SR, gradient of PQ = gradient of SR. Gradient of SR=− 6 −3 =2 (b) Gradient of QR= 8−6 5−0 = 2 5 Substitute m= 2 5  and R (5,8) into y=mx+c 8= 2 … Read more5.7.2 The Straight Line, SPM Paper 2