#composite functions

26 messages · Page 1 of 1 (latest)

green ether
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How to find domain and range of composite functions

IMG_0682.png
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grand glen
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the domain of f(x) is equal to the range of f-1(x)

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so if u just find the domain of f(x) its the same as the range of f-1(x)

green ether
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Wrong question

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1 sec

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Q13

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Part b

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I can find composite but how to find domain

lucid elbow
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The deonominator ≠ 0

green ether
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Fuck me that’s a bad example

lucid elbow
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So solve for x

green ether
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1 sec

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9a

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What’s the domain and range

onyx kraken
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-1

green ether
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And what’s domain

onyx kraken
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bc it’s the y value you get when you sub in -3 into pq(x)

onyx kraken
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the graph is infinite so it’s all the real values of x

lucid elbow
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Shldnt it be >0 not 1?

onyx kraken
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why