Calculus: Cubic Functions Grade 12 May/June 2024

HERE WE GO! QUESTION 9 GRADE 12 MATHEATICS P1 MAY/JUNE 2024 SUPP

[mogauemmanuel]

Sir I don't really follow for the value ot
I was taught to check the u values
Why 5 instead of -5

[LufunoMusetha]

9.1 ur correct but my question how do u know value of a is 1 yes the graph show a>o
According to my option a can be more 1
Look sir i think y=a(×+1)^2(×-5)
Since given d=-5 which is the y value which mean x=0
-5=a(0+1)^2(0-5)
-5=a(1)(-5)
a=1
There fore
Y=1(x+1)^2(×-5)
Final solution is going the ❤same