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Let f x 2x 4 and g x 6x 7 here g x gt 0 Solve t... - JAMB Mathematics 1997 Question

Let f(x) = 2x + 4 and g(x) = 6x + 7 here g(x) > 0. Solve the inequality (\frac{f(x)}{g(x)}) < 1

A
x < - \(\frac{3}{4}\)
B
x > - \(\frac{4}{3}\)
C
x > - \(\frac{3}{4}\)
D
x > - 12
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Correct Option: C

(\frac{f(x)}{g(x)}) < 1

∴ (\frac{2x +4}{6x + 7}) < 1

= 2x + 4 < 6x + 7

= 6x + 7 > 2x + 4

= 6x - 2x > 4 - 7

= 4x > -3

∴ x > -(\frac{3}{4})

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