Which of the following are polynomial functions? check all that apply. a. f(x) =3/5x^4 -18x^2 +5-10/x^2 b. f(x) = -x^3+5x2 +7square rooot x-1 c. f(x) = x^-2 + 15x-3 d. f(x) = 5.3x ^2+ 3x - 2 e. f(x) = 4x^4-10

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

3.how is solving radical equations different than solving linear equations?

step-by-step explanation: