Question
Jan Villaroel
Topic: Algebra Posted 4 months ago
Find a polynomial function of degree 4 with the zeros -3 ​(multiplicity 2​) and 3 ​(multiplicity 2​), whose graph passes

Find a polynomial function of degree 4 with the zeros -3 ​(multiplicity 2​) and 3 ​(multiplicity 2​), whose graph passes through the point (-4, 245)


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Koala Tutor
Aug 1, 2024
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A polynomial function of degree 4 with the zeros -3 (multiplicity 2) and 3 (multiplicity 2) can be written in the form:

f(x) = a(x + 3)^2(x - 3)^2

We can find the value of a by substituting the point (-4, 245) into the equation:

245 = a(-4 + 3)^2(-4 - 3)^2
245 = a(1)^2(-7)^2
245 = a(49)
a = 245/49
a = 5

So, the polynomial function is:

f(x) = 5(x + 3)^2(x - 3)^2

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