ABCD is a rectangle. A is the point (0,1). c is the point (0,6) the equation of the straight line through A and B is y=2x+1.

Question

(a)Find the equation of the straight line through D and C

Answer 1

CD//AB
m1 = 2 = Slope of AB.

m2 = -1/2 = slope of CD.

Y = (-1/2)0 + b = 6,
b = 6.

Eq: Y = (-1/2)X + 6.