Ascatter plot is made to model the amount of money left to pay on a mortgage. the data used for the scatter plot are shown in the table:

number of months 3 5 1 2 0 4
money owed $114,000 $100,000 $118,000 $116,000 $120,000 $112,000

what does the y-intercept of the model represent?
a)the amount of the mortgage that has been paid that month
b)the monthly payments
c)the original amount of the mortgage
d)the number of months it takes to pay off the mortgage

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.