During the worst periods of hyperinflation in a certain country, the price of food increase at a rate of 10% per month. state whether this increases was linear or exponential. if your food bill was 100 in one month during this period, what was it three months later?

The increase was exponential

After three months his expense was: $133.1

Step-by-step explanation:

The increase was exponential, because if we call x the initial price, then after the first month the new price p is:

After the second month, the new price is 10% of the price of the previous month, that is:

After month n, the price is:

Note that the equation has the form of an exponential growth function, where x is the initial price and n is the number of months elapsed.

In this case and . So:

30

step-by-step explanation:

times by times

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.