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faltersainse [42]
4 years ago
13

What is the inverse of the function below? f(x) = x - 4

Mathematics
1 answer:
iren2701 [21]4 years ago
5 0

Answer:

f^-1(x) = x + 4

Step-by-step explanation:

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What is the next number? 2+3=8 3+7=27 4+5=32 5+8=60 6+7=72 7+8=?
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Answer:

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2 + <em>3</em> = <u>8</u>

<u>8</u> : 2 = 4; 4 - 1 = <em>3     (subtract 1)</em>

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<u>60</u> : 5 = 12, 12 - 4 = <em>8     (subtract 4)</em>

6 + <em>7</em> = <u>72</u>

<u>72</u> : 6 = 12, 12 - 5 = <em>7     (subtract 5)</em>

7 + <em>8</em><em> </em>= <u>x</u>

<u>x</u> : 7 = y, y - 6 = <em>8     (subtract 6)</em>

Solve:

y - 6 = 8         <em>add 6 to both sides</em>

y - 6 + 6 = 8 + 6

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