Write the logarithmic function that best represents the data below.

Step-by-step explanation:

The general form of a logarithmic function is given as follows;

From the given data, we have;

When x = 1, y = -30

Therefore;

When x = 4, y = 0

Therefore;

When x = 5, y = 6

Therefore;

When x = 6, y = 4

Therefore;

Which gives;

When x = 7, y = 2

Therefore;

From which we have;

20 - 5·h - 4·h + h² = 42 - 7·h - 6·h + h²

20 - 9·h = 42 - 13·h

4·h = 22

h = 22/4 = 5.5

b = √(-1)

-k = log(-1.5)/log(√-1)

k = 2 - 0.258127·i

The logarithmic function is therefore;

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5