Help please! Determine whether each is a polynomial:
f(x)=3x+4/5x^3-7
g(x)=-5x^3+x-3/x
h(x)=x^3sqrt5 + x-3
k(x)=25x^2-x^3+x^5

Question

Help please! Determine whether each is a polynomial: 
f(x)=3x+4/5x^3-7
g(x)=-5x^3+x-3/x
h(x)=x^3sqrt5 + x-3
k(x)=25x^2-x^3+x^5

anonymous · Answer

@Data_LG2

anonymous · Answer

when you say polynomial function, there should be $No$ breaks on the graph.
so which one do you think will have no asymptote or breaks on these functions?

anonymous · Answer

D

anonymous · Answer

right ;p

anonymous · Answer

so everything else is not a polynomial? This wasn't a multiple choice. Each equation was its own question

anonymous · Answer

yes, the rest is not a polynomial function because if there are breaks that is called RATIONAL function.. degree of polynomial functions are whole positive numbers

anonymous · Answer

Oh right ok so I guess D is the only polynomial. Thank you! I have a long study guide to finish so is it ok if I tag you on some? I could really use the help

anonymous · Answer

if i can, i'll still try :)

anonymous · Answer

Thanks!

anonymous · Answer

What do you mean by break in the graph?

anonymous · Answer

asymptotes, or holes, discontinuities..
for example the function 1/x
the graph has a vertical asymptote and a horizontal asymptote |dw:1384538103381:dw|