Please can someone help me

9 %

Step-by-step explanation:

A loan of £8100 gains interest of £2187 in 3 years

The formula is

Where: r = (1/t)(A/P - 1)

Solving our equation:

r = (1/3)((10287/8100) - 1) = 0.09

r = 0.09

Converting r decimal to R a percentage

R = 0.09 * 100 = 9%/year

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

step-by-step explanation: