Which equation represents a nonlinear function?
a) y = x + 7
b) y = 3x - 1
c) y = 3x^2 + 1
d) y = x - 1/2

C.

Explanation:

We have to find an equation which represents a nonlinear function.

Linear function: That function in which highest power of variable is 1.

Or

Polynomial of degree one is  called linear function.

If degree of polynomial is greater than one then the function is called non-linear function.

Example : f(x)=x

It is linear because highest power of x is 1.

A.

It is linear function because degree of function is one.

B.

It is linear function because degree of function is one.

C.

It is non linear function because degree is 2 which is greater than 1.

D.

It is linear function because degree of given function is one.

Therefore, option C is true.

i cant if you dont give me the sentence or whatever.

man·u·script

/ˈmanyəˌskript/submit

noun

a book, document, or piece of music written by hand rather than typed or printed.

synonyms: document, text, script, paper, typescript

an author's text that has not yet been published.

thats all i can with. sorry. next time post the full question.

c, to compete