AP EAMCET202021 Sep 2020Evening ShiftMathematicsStraight LinesActual
If the length of the intercept made on the line (y=a x ) by the lines (y=2 ) and (y=6 ) is less than 5
Options
- A(a (- , ) )
- B(a ( -4 3 , 4 3 ) )
- C(a ( -3 4 , 4 3 ) )
- D(a 4 3 )
Correct answer
D. (a 4 3 )
Step-by-step solution
The point of intersection of lines (y=a x ) and (y=2 ) is (A ( 2 a , 2 ) ) and of the lines (y=a x ) and (y=6 ) is (B ( 6 a , 6 ) ), so ( aligned & A B= ( 6 a - 2 a )^2+(6-2)^2 16 9 a (- ,- 4 3 ) ( 4 3 , ) aligned ) (given) Hence, option (d) is correct.