In - ABC shown below, side AC is extended to point D with m DAB = (180 – 3x), m2 B= (6x – 40), and m2 C = (x + 20).
В
(6x-40)
(180 - 3)
x 20
D
What is mBAC?

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;

the correct answer

just use google you beautiful person.

have a nice day < 3