WHAT IS THE CONSTANT OF PROPORINALTY brianly reward will be given for the correct answer and tons of points.

Explanation:

Pick any point on the diagonal line, that isn't the origin, and divide the coordinates like so: k = y/x

For example, the point (x,y) = (100,250) leads to k = y/x = 250/100 = 2.5

Or you could pick (x,y) = (300,750) which leads to k = y/x = 750/300 = 2.5

Direct proportion equations are always in the form y = kx with k = y/x being the constant of proportionality.

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

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