Inverse proportion question attached

see explanation

Step-by-step explanation:

Given that y is inversely proportional to x² then the equation relating them is

y =

(a)

To find k use any ordered pair from the table.

Using (1, 4 ), then

4 = ⇒ k = 4

y = ← equation of proportion

(b)

When y = 25, then

25 = ( multiply both sides by x² )

25x² = 4 ( divide both sides by 25 )

x² = ( take the square root of both sides )

x = = = ← positive value of x

$655.61 which is option c

step-by-step explanation:

price of house =   $146,000

initial rate = 3.5%

mortgaged paid in this = 3.5 % of $146,000

                                        =

                                        =$5110

the total years would be = 7

total mortgaged paid = 7 * $5110

                                      =$35770

remaining money = $146000-35770

                                =$110230

new mortgaged payment = 5 % of 110230

                                            =  

                                            =$655.61