A. rhian measures the height of one of her tomato plants as 20cm. the next week it is 15% taller. what is it's new height? b. another tomato plant grows from 240cm to 312cm. calculate the percentage change in height. answer this quickly

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:

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times