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secondary 4 | A Maths
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lana <3
Lana <3

secondary 4 chevron_right A Maths chevron_right Singapore

pls help with this qn. I know that to prove a 1-1 function we need to use horizontal line test but I’m not sure how. And for the next part I think the ans should be any value less than or equals to 0 but i might be wrong. Someone pls explain !

Date Posted: 7 months ago
Views: 153

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Hao Wei
Hao Wei's answer
18 answers (Tutor Details)
1st
here u go
lana <3
Lana <3
7 months ago
can the ans for bii) also be < or equals to 0
Hao Wei
Hao Wei
7 months ago
can also
lana <3
Lana <3
7 months ago
thank you!
lana <3
Lana <3
7 months ago
does it matter where I draw the horizontal line on the graph? like it could be y= to anything right ?
Hao Wei
Hao Wei
7 months ago
ur horizontal line can be anywhere as long as it intersects the function at 2 or more points
lana <3
Lana <3
7 months ago
okok thank youuu!!