What is the rule for the sequence with the first four terms below? 0.5, 0.25, 0, –0.25 f(x)= 0.75-0.25x f(x)=0.5-0.25x f(x)= 0.75(-0.25)^x f(x)= 0.5(0.25)^x

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step-by-step explanation:

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: