The area of a square is 64cm squared. what is the perimeter of the square?

32cm

Step-by-step explanation:

Area of a square = side × side

Let one side be represented by (x)

Area of the square = (x)^2

; 64 = (x)^2

Hence...x = square root of (64)

; x = 8cm

Hence the perimeter of the square,

; 4 × (length of one side)

; 4 × 8cm

;Perimeter = 32 cm

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: