Write à function, s(t), to represent the simple interest account and a function, c(t), to represent the compound interest account.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
I don't understand how to write compound interest as a function. I've highlighted the parts of the question I need help with, I included the whole page because it has the data.
![Calculating Interest with Linear
and Exponential Functions
АCTIVITY
2.1
Let's consider which function type represents each situation.
Recall that in a simple
Sanjay's family deposited $20,000 in an interest bearing account for his
college fund. Sanjay's account earns simple interest each year.
interest account, a
percent of the starting
Chikonde's family deposited $20,000 in an interest bearing account for
her college fund that earns compound interest each year.
balance is added to
the account at each
interval. The formula
for simple interest
is / = Prt, where
Simple Interest Balance
(dollars)
Compound Interest Balance
(dollars)
Time
(years)
P represents the
starting amount, or
principal, r represents
20,000
20,000
1
20,800
20,800
the interest rate,
t represents time,
and / represents the
interest earned. In a
2
21,600
21,632
3
22,400
22,497.28
compound interest
10
28,000
29,604.89
account, the balance
is multiplied by the
same amount at
1. Study the table of values.
each interval.
a. Sketch a graph of each account balance in dollars as a
function of the time in years.
Simple Interest Balance
Compound Interest Balance
30K
30K
29
29
28
28
27
27
26
26
25K
25
24
24
23
23
L2
22
20 K
I 2345678910
Yrs
12345618910 í
b. Write à function, s(t), to represent the simple interest
account and a function, c(t), to represent the compound
interest account.
St)= 800t + 20000
Clt)=
LESSON 2: Turn That Frown Upside Down
M3-109
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