How do you find the domain of $F (x) = ln (- 7 - 4 x)$ $F(x)=ln(-7-4x)$ ?

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Answer 1 · 2017-09-27T11:30:08

Domain: $x < - \frac{7}{4} or (- \infty, - \frac{7}{4})$ $x < -7/4 or (-oo, -7/4)$

$F (x) = ln (- 7 - 4 x)$ $F(x) = ln (-7 -4x)$ Since any value for $x$ $x$ in $ln x$ $ln x$ must be greater

than zero , then domain is $- 7 - 4 x > 0 or - 4 x > 7$ $-7-4x >0 or -4x > 7$ or

$- x > \frac{7}{4} or x < - \frac{7}{4}$ $-x > 7/4 or x < -7/4$

Domain: $x < - \frac{7}{4} or (- \infty, - \frac{7}{4})$ $x < -7/4 or (-oo, -7/4)$

How do you find the domain of F(x)=ln(−7−4x)F(x)=ln(-7-4x)?