2 years ago

What is the graph of the function f(x) = -x^2+x+20/x+4

1 answer:

3 0

F(x) = (-x²+x+20) / (x+4)

-x²+x+20 | x+4
+x²+4x -x+5
\\\\ 5x+20
-5x-20
\\\\\\\\\

f(x) = (x+4)(-x+5) / (x+4)

f(x) = (-x+5)

The graph is a decreasing line, with origin from 5.

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. f(x) = Square root of quantity x plus eight. ; g(x) = 8x - 12 Find f(g(x)). (1 point) f(g(x)) = 2 Square root of quantity two

frozen [14]

Answer:

$f(g(x))$ = $\sqrt{8x - 4}$

Step-by-step explanation:

• $f(x) = \sqrt{x + 8}$

• $g(x) = 8x - 12$

$f(g(x))$ is the combination of the functions $f(x)$ and $g(x)$ such that $g(x)$ is the input to the function $f(x)$ .

This means, we have to replace the original input of $f(x)$ , which is $x$ , with the function $g(x)$ .

∴ $f(g(x))$ = $f(8x - 12)$

⇒ $\sqrt{8x - 12 + 8}$

⇒ $\sqrt{8x - 4}$

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D. 1080°

Step-by-step explanation:

Sum=(n-2)x180°

(8-2)x180°

6x180°

1080°

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