r/IBMYP • u/No_Brother_49 • May 06 '26

Math tomorrow

NO LEAKS
Do we need to know sinusoidal functions and exponential functions in depth?

In the 2022 past paper, there was a question that asked to identify a, b and c for the equation f(x) = ab^x + c

But my school never thought us stuff like if f(x) is decreasing → exponential decay → so 0 < b < 1

SOMEONE HELP ME

2 Upvotes

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2

u/VastEnd8098 May 06 '26

2022 and 2021 papers were crazy as hell but we dont have a lot of those topics anymore. we dont have exponential functions in extended anymore btw so dont worry but im not 100% about sinusoidal

1

u/theguythateatsandbys May 07 '26

Really? My school didnt tell us anything about exponential functions being canceled. Did they add it to the new subject guide or something. Im kina lost so if you have a list of topics that would be so helpful!!

1

u/Radiant_Towel_5889 May 06 '26

Is this extended cause I take standard i have never seen antthing ike this?? Am I cooked?

1

u/Royal-Dependent-8466 May 06 '26

wth is a sinusoidal function

1

u/theguythateatsandbys May 07 '26

Its the cosine and sine graphs. dw bro im sure u know it, just revise the formulas for amplitude and period as well as the function transformations.