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1. Could someone explain how to solve part d please?

the answer to part c is x=6-3y^2

thanks
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2. (Original post by Katiee224)
Could someone explain how to solve part d please?

the answer to part c is x=6-3y^2

thanks
I think it is k=2, if you substitute the range of t into y, the Max you can get is 2 and min is -2
3. (Original post by JasPuddy)
I think it is k=2, if you substitute the range of t into y, the Max you can get is 2 and min is -2
I get it now, thanks

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