Question

Which of the following are polynomial functions?

Check all that apply.

A. F(X)=3/5x^4-18x^3+x^2-10x+3.5
B. F(x) = 3x^-3 - 19
C. F(x) = 2x^2 + 5x - 3
D. F(x) = -x^3 + 5x^2 + 7x - 1
E. -x^3+square root of -x

Answer 1

hint: all the exponents have to be whole numbers

Answer 2

any ideas which ones we can cross out?

Answer 3

no clue man not at all

Answer 4

which ones have exponents that are not whole numbers?

Answer 5

all exponets are whole numbers

Answer 6

nope

Answer 7

remember:

whole numbers only include positive numbers and 0...

Answer 8

.-.

Answer 9

hint: there are 2 out of those 5 choices that are not polynomials

Answer 10

look at the exponents.

Answer 11

which exponents are not whole numbers?

Answer 12

i know e is out and i think a

Answer 13

whole numbers = 0, 1, 2, 3, etc.

Answer 14

e is out but a is still in

Answer 15

all the exponents in a are whole numbers

Answer 16

keep trying

Answer 17

oh b

Answer 18

good, so b and e are out

so your answers are a,c,d

Answer 19

thanks