WorksheetsM9 DL LHS Exponential growth/decay 1
Total questions: 10
Worksheet time: 5mins
What is the multiplier (b-value) for an increase of 25%
125
1.25
25
.75
In an exponential equation y=abx which letter represents the output?
y
a
b
x
In an exponential equation y=abx
which letter represents the starting point or initial value?
x
b
a
y
In an exponential equation y=abx
which letter represents the multiplier or rate of change?
b
x
y
a
In an exponential equation y=abx what letter is the exponent which is usually time in an equation?
y
a
b
x
What is the multiplier (b-value) for a decrease of 18%?
-18
.82
1.18
.18
What is the multiplier (b-value) for an increase of 39%?
1.39
39
.39
.61
What is the multiplier (b-value) for a decrease of 94%?
-94
.06
.94
1.06
In seven yeas, Seta's son Stu is leaving home for college. Seta hopes to have $8000 to help pay for his first year. She has $5000 now and found a bank that pays 7.75% interest per year. At this rate how much money will she have saved in seven years?
$8431.23
$6875.20
$8000
$5000
Eight years ago, Rudi thought that he was making a sound investment by buying $1000 worth of Pro Sports Management stock. Unfortunately, his investment depreciated (lost value) steadily, losing 15% of its value each year. What exponential equation represents this situation?
y=1000(1.15)8
y=1000(.15)8
y=1000(.85)7
y=1000(115)8
