Triangle A: 3, 4, 5 Triangle B: 5, 12, 13

Triangle C: 10, 12, 15

Triangle D: 3, 6, image

Triangle E: 8, 15, 17

Which of the triangles are NOT right triangles? Select the ones you know or think don't apply.

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:

1/800 is the right answer