Topic 3 Exam Review

Function Notation and Evaluating

100

f(x) = 4x, f(0) = ...?

0

200

g(x) = 2(x-1) + 4, g(5) = ...?

12

300

h(z) = (z*1/3)+1, h(15) = ...?

6

400

a(x) = 401(3x - 12) - 144, a(11) = ...?

8277

500

d(r) = 1.104(2.4r - 6) + 3(0.9r-2), d(10) = ...? 

40.872

Linear Functions

100

The line f(x) = 5x - 3 has a y-intercept of...?

-3

200

The line f(x) = 1/3x + 6 has a slope of ...?

1/3

300

After finding the slope of a linear function from a table, the next step is to... 

Pick a point!!!!!!!

400

(0, -4) (1, 4) (2, 12) (3, 20), (4, 28), ... What is the equation for this line?

y = 8x - 4

500

(11, 15) (12, 40) (13, 65) (14, 90)... What is the equation for this line?

y = 25x - 260

Transformations

100

The transformation f(x) + 9 moves the function f in which direction

Up

200

The transformation g(x-2) moves the function g in which direction?

Right

300

If f(x) = 2x, then 3f(x) = ...?

6x

400

If g(x) = 3x+1, then g(x+1) = ...?

3(x+1) + 1 OR 3x + 4

500

If h(x) = 29(4x - 1) + 6, then h(x + 12) = ...?

29(4(x + 12) - 1) + 6

Arithmetic Sequences

100

1, 3, 5, 7, 9, ... What is the 6th term in the sequence?

11

200

15, 12, 9, 6, 3, ... What is the 7th term in the sequence?

-3

300

What is the 65th term of the sequence 7 + 13(n - 1)?

839

400

What is the 78th term in the sequence?

a₁ = 4

a_n = a_n-1 - 23

-1767

500

4/15, 8/15, 4/5, 16/15, ... Find the 48th term of the sequence.

12.8 OR 64/5

Association/Linear Regression

100

A trend line with a slope or 14 is a _____________ association.

Positive

200

A correlation coefficient of r = -0.01 is a ____________________ correlation (two words)

Weak Negative

300

True or False: A trend line must touch all the points on a scatter plot?

False

400

How do I turn on Statistic Diagnostics using the TI-84?

2nd, 0, scroll to DIAGNOSTICSON, enter, enter

OR

MODE, scroll down to STAT DIAGNOSTICS, select ON

500

(14, 99) (18, 120) (19, 125) (27, 156) (30, 200)

What is the equation for the line of best fit based on the points above? Round to the nearest thousandth.

y = 5.717x + 16.519