What is the area of a triangle with a base of 9 units and a height of 7 units?

31.5 sq. units.

Step-by-step explanation:

FROM

A P E X

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:

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.