Like fractions, rational expressions can be
added, subtracted, multiplied, and divided,
When dealing with two rational expressions
that have different denominators, how would
you find a common denominator? What effect
would that have on the numerators of the
expressions? Would the same idea work for
simple numeric fractions? Why or why not?
Given two rational expressions, how would the
process you follow to multiply or divide them
differ from multiplying or dividing two numeric
fractions?

Answer Properly Please

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:

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8