Question

The table below shows the amount that must be repaid, y, when x dollars are borrowed. Amount Borrowed Amount Repaid $100 $135 $200 $260 $500 $635 $800 $1,010 Which equation represents the relationship?

Answer 1

$y=128.29(1+.0028)^{x}$
This is an exponential decay question use the exponential regression function in a graphing calculator to find the approximate graph. 

Answer 2

Answer:

The equation is $y=1.25x+10$.

Step-by-step explanation:

We are given,

The table showing the amount to be repaid after borrowing is,

Amount Borrowed (x)                           Amount Repaid (y)  

        100                                                                 135

        200                                                                260

        500                                                                635

        800                                                                1010

Using the linear regression calculator, we see that,

The equation of the relationship is $y=1.25x+10$, where y= amount to be repaid and x= amount borrowed.