# Anyone know how to do functions 😖Watch

Thread starter 1 week ago
#1

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1 week ago
#2
(Original post by Fayeeeee)
What don't you get??

, so when we say we look at and replace by before simplifying everything.

So .

Same idea for pretty much the first half of these questions.
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Thread starter 1 week ago
#3
(Original post by RDKGames)
What don't you get??

, so when we say we look at and replace by before simplifying everything.

So .

Same idea for pretty much the first half of these questions.
(Original post by RDKGames)
What don't you get??

, so when we say we look at and replace by before simplifying everything.

So .

Same idea for pretty much the first half of these questions.
Ahh thanks, my teachers not the best😂
I don’t understand the ones past 5 thou
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Last edited by Fayeeeee; 1 week ago
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1 week ago
#4
(Original post by Fayeeeee)
Ahh thanks, my teachers not the best😂
How do you do the ones for number 2 thou ?
Same thing!

means you work out first of all, then .

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Thread starter 1 week ago
#5
(Original post by RDKGames)
Same thing!

means you work out first of all, then .

Ahh, I realised after I wrote it ahah
I don’t understand any past 5 thou, how do you apply it?
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1 week ago
#6
(Original post by Fayeeeee)
Ahh, I realised after I wrote it ahah
I don’t understand any past 5 thou, how do you apply it?
What do you mean? The questions 5, 6, 7 define new functions but the process is the same.
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Thread starter 1 week ago
#7
(Original post by RDKGames)
What do you mean? The questions 5, 6, 7 define new functions but the process is the same.
Ohh right thankss
Last question 😂, for 8/9/10 are you working backwards I don’t really know
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1 week ago
#8
(Original post by Fayeeeee)
Ohh right thankss
Last question 😂, for 8/9/10 are you working backwards I don’t really know
Working backwards?? Not sure what you mean.

A function is defined as , and then as . Since these represent the same function, they must be equal: . This allows you to solve for .

Same process for all three.
1
1 week ago
#9
yep, for 8 it is 2x+2=8 and rearrange
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Thread starter 1 week ago
#10
(Original post by RDKGames)
Working backwards?? Not sure what you mean.

A function is defined as , and then as . Since these represent the same function, they must be equal: . This allows you to solve for .

Same process for all three.
Ahhhh, thank you so much you’ve really helped me and I appreciate it allot! 🙂
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Thread starter 1 week ago
#11
(Original post by ThunderBeard)
yep, for 8 it is 2x+2=8 and rearrange
😊 thank you
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