In the figure below, JK=8 and JL = 25. Find KL.
J
K
KL =
X 6
?

Step-by-step explanation:

JK = 8

JL = 25

find KL

JK + KL = JK

8 + KL = 25

KL = 25 - 8

KL = 17

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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: