3 years ago

Let f(x) = -2x - 7 and g(x) = -4x + 3. Find (f o g)(-5)

1 answer:

3 0

The answer is: [A]: " -53 " .
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Explanation:
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Given:

" Let f(x) = -2x −<span> 7 and g(x) = -4x + 3. Find (f o g)(-5) " ;
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First, find g(-5) . g(x) = -4x + 3.

g(-5) = -4*(-5) + 3 = 20 + 3 = 23 ;
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Now find f (g(-5) to get the answer; that is f(23);
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Find f(23). f(x) = -2x </span>− 7 .

f(23) = (-2*23) − 7 = -46 <span>− </span>7 = -53 ; which is "Answer choice: [A]" .
_______________________________________________

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Let f(x) = -­2x ­- 7 and g(x) = ­-4x + 3. Find (f o g)(-­5)

Let f(x) = -2x - 7 and g(x) = -4x + 3. Find (f o g)(-5)