Yis inversely proportional to the square of x. A table of values for x and y is shown.

a) Express y in terms of x.
b) Work out the positive value of x when y = 25

(a)

(b)

Step-by-step explanation:

Given

Variation: Inverse proportional.

This is represented as:

See attachment for table

Solving (a):

First convert variation to equation

From the table:

So, we have:

Substitute 4 for k in

Solving (b): x when y = 25.

Substitute 25 for y in

Cross Multiply

Divide through by 25

Take positive square roots of both sides

first one is a: renaming a fraction. second one is c: de-c

step-by-step explanation:

my explanation is that these were the answers on edg : )

translate k to n and reflect across the line containing jk.