Precalculus -- Exponentials and Logarithms

Exponential Functions

100

What is the growth factor for f(x)?

f(x)=14*7^x

7

200

What is the y-intercept for f(x)?

f(x)=14*7^x

14

300

which of the following functions will increase faster?

f(x)=4*5^x

h(x)=4*6^x

h(x)

400

which of the following functions will increase faster?

f(x)=4*5^2x

h(x)=4*5^x

f(x)

500

which of the following functions will increase fastest?

f(x)=4*6^x

h(x)=4*5^x

g(x)=4*5^2x

g(x)

Logarithms

100

log₁₀(10)=?

1

200

log₅(?)=0

1

300

log_?(64)=2

8

400

Rewrite the exponential relationship as a log relationship:

2⁷=128

log₂(128)=7

500

Rewrite the logarithmic relationship as an exponential relationship:

log₁₀(x)=6

10⁶=x

Bonus: Find x

Solving Equations

100

Find x:

x+5=7

x=2

200

Find x:

6x+3=21

x=3

300

Find x:

x²+5=105

x=10

400

Find x and y:

2x-8y=-54

-2x+y=-2

x=5

y=8

500

Find x (leave it in log form)

2^x-3+4-5+6-7=8

x = log₂(13)

Percents, Decimals, and Fractions

100

What's the decimal form of 15%?

0.15

200

What's 43% of 200?

86

300

What's the decimal form of 0.002%

0.00002

400

What percentage does 7/56 equal to?

12.5%

500

What's the most simplified fraction form of 64%?

16/25

Random

100

What math class typically comes after Precalculus?

Calculus

200

True or false: Snakes are just lizards without legs

False

300

What other classes does Jan teach besides Precalculus?

Physics, Stats, 6th grade exploratory, Algebra 1, Applied Math

400

Is 64 degrees Fahrenheit hotter or colder than 32 degrees Celsius?

Colder

500

The main characters of SpongeBob all represent one of the seven deadly sins. Which deadly sin does Plankton represent?

Envy/Jealousy