Straight line test 2
A,B and C are points on a straight line that makes an angle of ceta with
the positive x-axis.given that cos ceta = 4/5,B is the point (-1,5) and
the coordinate of A is (t,0).Find a)the equation of the line AB,b)the
value of t,c)the coordinate of C if 3AB = 2AC
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