0,1,2,3,4,5...
To Infinity and Beyond
Composing Inverses
Rewriting exponential
Trivia
100

Let an be an arithmetic sequence.

If a= 7 and a= 17, find a11.

23

100

Write the limit statement for the end behavior of the following function: 

f(x) = -2(5)x

The limit as x approaches negative infinity of f(x) is 0.

The limit as x approaches positive infinity of f(x) is negative infinity.

100

What is the inverse of the function

f(x) = (3x- 4)/x3

y = [-4/(x-3)]1/3

100

Rewrite the following equation in the equivalent general form y=abx.

f(x) = gx-1

f(x) = (1/5)5x

100

Who is blue hedgehog?

Sonic

200

Let gn be a geometric sequence.

If g4 = -12 and g7 = 32/9, find g6.

-16/3

200

Write the limit state for the end behavior of the following function:

f(x)= -2(2)-x

The limit as x approaches negative infinity of f(x) is negative infinity.

The limit as x approaches positive infinity of f(x) is 0.

200

Does the function y = x2 have an inverse?

Justify your answer.

No

It does not pass the horizontal line test

It is not one-to-one.

It is not strictly increasing or decreasing.

Any one of these justifications is valid.

200

The function g(x) = 4*2(x+3) is given.

Rewrite g(x) in the equivalent form of y=abx.

g(x) = 32*2x

200

How many wheels are there on a Formula 1 car?

4

300

For an arithmetic sequence an, a3 = 3 and a6 = 24. 

What is the value of a10 - a8?

14

300

The following equation, f(x), has the form abx.

If f(x) is concave down, what can we say about a and x.

a is negative and x can be anything. 
300

The functions f and g are given by f(x) = 1/x and 

g(x) = x1/2.

What is the domain of f(g(x))?

All real #'s greater than 0.

300

The function h(x) = 3(x+2) contains a horizontal dilation. Rewrite the function such that h(x) has a vertical dilation. 

h(x) = 9 * 3x

300

True or False:

Australia's east to west distance is wider than the diameter of the moon.

True: The moon as a diameter of 3400km while Australia's diameter east to west is almost 4000km.

400

The fifth term of a geometric sequence is 25 and the sixth is 48, what is the value of the tenth term? 

768

400

Concave up or down? Increasing or decreasing?

f(x) = 2(pi/3)x

a>0 and b>0; exponential growth


concave up and increasing

400

The functions f and g are given by f(x) = x4 + 1 and g(x) = x - 1.

What is f(g(x))? 

Expand fully.

x- 4x+ 6x- 4x + 2

400

Rewrite f(x) into y=abx form.

f(x) = 3(2)3-x

f(x) = 24(1/2)x

400

How many 3 pointers has shaq made?

1

500

A ball is dropped from a height of 10 feet. The ball repeatedly bounces, and the maximum height of the ball after each bounce is 20% less than the previous maximum height. Which type of sequence should one use to accurately measure the height at each bounce?

Geometric; each bounce is 80% the height of the previous which means the previous bounce is multiplied by .8 to get to the next. 

500

A colony of bacteria started out with a population of 5. Each bacteria splits into 3 every hour. Write an equation, b(t), that represents the population of the bacteria colony at any given hour. 

b(t) = 5(3)t

500

Given a function f(x) and its inverse f-1(x).

What is f(f-1(e))?

e

500

Rewrite an equivalent expression for f(x) in y=abx form.

f(x) = 812(27)-x+2

f(x) = (314)(1/27)x

500

Distance to the moon in km.

356,000 to 407,000 km

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