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I tried to find the constant k by using a model (I used 9000 as V, t=4, A=16000) and i substituted it with t=3 but it did not give me the same result as you. Is it incorrect to do it like this?
Will there be modelling in the upcoming exam for paper 1?
Very likely yes, there’s nearly always modelling. Just not clear which functions it could be!
would what you did for the linear model always work for all questions like this when asked to find using the linear one?
Yes it’ll always work!
Which app do you use to create content
I use GoodNotes! I have since started editing them a little more to get rid of the top and sides. Looks nicer!
Would it be okay to model the constant k as a positive constant, and then add the negative to represent an exponential decrease?
Yes, that would also be ok!
at 0:40 wouldnt it change a lot on wheather you use "e" or not because its an actual value on the calculator? Because you said it didnt matter
All the other values in the question would adjust depending on what value you use - I just use 'e' as it is a common approach to take!
I tried to find the constant k by using a model (I used 9000 as V, t=4, A=16000) and i substituted it with t=3 but it did not give me the same result as you. Is it incorrect to do it like this?
Will there be modelling in the upcoming exam for paper 1?
Very likely yes, there’s nearly always modelling. Just not clear which functions it could be!
would what you did for the linear model always work for all questions like this when asked to find using the linear one?
Yes it’ll always work!
Which app do you use to create content
I use GoodNotes! I have since started editing them a little more to get rid of the top and sides. Looks nicer!
Would it be okay to model the constant k as a positive constant, and then add the negative to represent an exponential decrease?
Yes, that would also be ok!
at 0:40 wouldnt it change a lot on wheather you use "e" or not because its an actual value on the calculator? Because you said it didnt matter
All the other values in the question would adjust depending on what value you use - I just use 'e' as it is a common approach to take!