At the end of an advertising​ campaign, weekly sales amounted to ​$25,000 and then decreased by 10​% each week after the end of the campaign. a. Write the equation of the exponential function that models the weekly sales. b. Find the sales 6 weeks after the end of the advertising campaign.

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

ok so what's the question?

step-by-step explanation: