Does the equation below represent a relation, a function, both a relation and a function, or neither a relation nor a function? y = 312 - 98 + 20

OA.
neither a relation nor a function

OB.
both a relation and a function

OC.
function only

OD. relation only

answer: i believe its b. if you sound out the sentences that sounds wrong.

21.4 i did it already for s1

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:

answer: it's upside down and i can't read it

step-by-step explanation: