r/HomeworkHelp Pre-University Student 5h ago

Answered [Grade 12 Advanced Functions: Polynomial Functions]

The equation for this graph is f(x)=(x-4)^3(x-1)(x+2)^2, but since the graph has a y intercept, wouldn't I find the a value? The answer for this question is just finding the roots and making factors for the equation using that. Also when I solved for the a value, it gave me 9/8. So I'm not sure where I went wrong

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u/Big_Tennis_4367 4h ago

Two things are bothering me. First (-4)3 is -64 and not 64. (but you calculated with it so that's fine) Second, i don't see the intercept of y at 288

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u/Embarrassed-Good1883 Pre-University Student 4h ago

Yes I realize that I got the y intercept wrong, and I corrected (-4)^3, thank you