WorksheetsM3 T2 Exponentials Review
Total questions: 14
Worksheet time: 16mins
1) Malea bought the following number of stickers each day:
One sticker the first day.
Four stickers the second day.
Sixteen stickers the third day.
Sixty-four stickers the fourth day.
What is the common multiplier?
2
4
8
My answer isn't on here.
1) Malea bought the following number of stickers each day:
One sticker the first day.
Four stickers the second day.
Sixteen stickers the third day.
Sixty-four stickers the fourth day.
What is the correct function that represents the number of stickers as a function of the number of days.
f(x) = 4x
g(x) = 4x-1
My answer isn't on here.
Which country is home to the kangaroo?
Australia
New Zealand
China
South Africa
2a) Write √10 using a rational exponent.
102
101
101/2
My answer isn't on here.
2b) Write 81/3 in radical form.
8
√8
∛8
My answer isn't on here.
3) Michael puts $8,000 into a savings account that pays 2.5% interest that is compounded annually.
Write a function that represents the total amount of money in his account as a function of the number of years.
f(x) = 8000(2.5)x
f(x) = 8000(0.025)x
f(x) = 8000(1.025)x
f(x) = 8000(0.975)x
4) The population of Meyersdale is changing exponentially. This change is modeled by the function
f(x) = 6,600(0.92)x. Interpret the function to describe how the population changes. Select all answers that are correct.
The starting population of Meyersdale was 6,692.
The starting population of Meyersdale was 6,600.
The population is decreasing.
The population is changing by 92%
The population is changing by 8%.
6) Let f(x) = 2x and h(x) = -2x+5. How has f(x) transformed to become h(x)? Select ALL that apply.
Translated right 5 units.
Translated up 5 units.
Reflected over the x-axis.
Dilated by a factor of 5.
Dilated by a factor of 2.
How many days are in March?
28
30
31
912
7) Emily placed $2,000 into a savings account with 3% interest, compounded annually. She also has $900 in a safe at home that she does not touch or add to. Write Emily’s total savings S(t) as a function of time in years, t.
S(t) = 2000(1.3)t
S(t) = 2000(3)t + 900
S(t) = 900
My answer isn't on here.
8) Emily placed $2,000 into a savings account with 3% interest, compounded annually. She also has $900 in a safe at home that she does not touch or add to. Emily’s total savings is modeled by the function S(t) = 2000(1.03)t + 900. What is the y-intercept and the horizontal asymptote?
y-int: (0, 900)
HA: y = 0
y-int: (0, 2900)
HA: y = 0
y - int: (0, 2900)
HA: y = 900
y - int: (0, 900)
HA: y = 2000
