Exam Question 9 of 18 | Page 9 of 18
Question 9 (1 point)
*hint find the limits using logic and then see which equation yields the same answers you come up with.
The bus routes in a city run on average every 15 minutes. The route times can vary by three
minutes. Which absolute value equation can be used to find the maximum and minimum wait
times at a bus stop?
A|x - 15- 3
B|-3/- 15
c/15 - x) = 3
D/3 - +/- 15
a
b

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.

do your own work and don"t cheat.

step-by-step explanation:

0.50 , 0.75

step-by-step explanation: