Question

Which polynomial function has a leading coefficient of 2, root –4 with multiplicity 3, and root 10 with multiplicity 1?

f(x) = 2(x – 4)(x – 4)(x – 4)(x + 10)
f(x) = 2(x + 4)(x + 4)(x + 4)(x – 10)
f(x) = 3(x – 4)(x – 4)(x + 10)
f(x) = 3(x + 4)(x + 4)(x – 10)

Answer 1

b

Explanation:

Answer 2

B

Explanation:

The leading coefficient is 2 so that rules out C and D. The function also has a root of -4 but the function has to be the opposite giving you +4 and -10.

So, the answer would be 2(x+4)(x+4)(x+4)(x-10)

I got this right on the unit test!!!!