Mathematics
VioletBucholtz791
2015-11-06 16:41:09
if f(x) = 3-2x and g(x) = 1 ÷ x+5 , what is the value of (f/g) (8)
ANSWERS
veronicamarie12
2015-11-06 21:35:27

[latex](frac{f}{g})(x)=frac{f(x)}{g(x)}[/latex] so [latex](frac{f}{g})(8)=frac{f(8)}{g(8)}[/latex] find f(8) and g(8) f(8)=3-2(8)=3-16=-13 [latex]g(8)=frac{1}{8+5}=frac{1}{13}[/latex] so [latex]frac{f(8)}{g(8)}=frac{-13}{frac{1}{13}}=(-13)(13)=-169[/latex] [latex](frac{f}{g})(8)=-169[/latex]

LeighFrenz
2015-11-06 21:36:42

[latex]f egin{cases} f(x)=3-2x\ g(x)=frac{1}{x+5} end{cases}qquad left( cfrac{f}{g} ight)(8)implies cfrac{f(8)}{g(8)}implies cfrac{3-2(8)}{frac{1}{(8)+5}} \\\ cfrac{3-16}{frac{1}{13}}implies cfrac{-13}{frac{1}{13}}implies cfrac{frac{-13}{1}}{frac{1}{13}}implies cfrac{-13}{1}cdot cfrac{13}{1}implies -169[/latex]

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