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QUESTION
Q
Find the relation between x and y based on the given equations
i) 6x2 − 7x − 55 = 0
ii) 15y2 + y − 28...
Find the relation between x and y based on the given equations
i) 6x2 − 7x − 55 = 0
ii) 15y2 + y − 28 = 0
A
y ≥ x
B
y ≤ x
C
y > x
D
y < x
E
Relation between x and y cannot be determined
A
y ≥ x
B
y ≤ x
C
y > x
D
y < x
E
Relation between x and y cannot be determined
Solution
6x2 − 7x − 55 = 0
6x2 + 15x − 22x − 55 = 0
(3x − 11)(2x + 5) = 0
x = 11/3 , −5/2 ——-(1)
15y2 + y − 28 =...
6x2 − 7x − 55 = 0
6x2 + 15x − 22x − 55 = 0
(3x − 11)(2x + 5) = 0
x = 11/3 , −5/2 ——-(1)
15y2 + y − 28 = 0
15y2 + 21y − 20y − 28 = 0
(3y − 4)(5y + 7) = 0
y = 4/3, −7/5 ———(2)
−5/2 < −7/5 < 4/3 < 11/3
From the Eq (1) and (2) we can say that the relation between x and y cannot be determined.
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