Find an equation for the line below

Look at the dotted points  on the line in your graph. check their coordinates, for your ease i am attaching a picture, please have a look.

so the two coordinates we have is : ( 3 , 1 ) , (- 1 , - 5)

Now let's find the gradient from these two coordinates.

Now we use the equation of a straight line and here , you can use any of the coordinates. For my ease, I am using the first one:

23

step-by-step explanation:

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