Algebra 1 Common Core Student Edition, Grade 8-9

Ch ap t er Rev i ew

Connecting B IO ideas and Answering the Essential Questions

l F u n ctio n s

A fu n c tio n is a re la tio n s h ip

that pairs one input value

with exactly one output

value. You can use words,

tables, equations, sets o f

ordered pairs, and graphs to

represent functions.

2 M o d e lin g
You can use functions to
model real-world situations
th a t pair one input value w ith
a u n iq u e o u tp u t v a lu e.

Patterns and Functions

(Lessons 4 -2 and 4 -3)

Linear

Nonlinear -2 \^0

Using Graphs to Relate Two

Quantities (Lesson 4-1)

Function Notation and Sequences

(Lessons 4 -6 and 4 -7)

1 3 + (1 - 1) (2)^3

2 3 + (2 - 1) (2) 5

3 3 + (3 - 1) (2) 7

Graphing a Function Rule

(Lesson 4-4)

i y

X

-2

V

y

r~ t—j

r j

• o *
  -5 i

Continuous Discrete

Writing a Function Rule

(Lesson 4-5)

C = \ n + 6 A=s2

Ch ap t er V o ca b u l a r y

arithm etic sequence, p. 275

common difference, p. 275

continuous graph, p. 255

dependent variable, p. 240

discrete graph, p. 255

domain, p. 268

explicit form ula, p. 276

• fu n ctio n , p. 241


• function notation, p. 269


• input, p. 240


• independent variable, p. 240


• linear fu n ctio n , p. 241


• nonlinear function, p. 246


• output, p. 240
  
  
  • range, p. 268
  
  
  • recursive form ula, p. 275
  
  
  • relation, p. 268
  
  
  • sequence, p. 274
  
  
  • t e r m o f a s e q u e n c e , p. 2 74
  
  
  • vertical line test, p. 269
  
  
  
  

Choose the correct term to complete each sentence.

1. If the value of a changes in response to th e value of b, then b is th e ?.


2. The graph of a(n) J_ function is a nonvertical line or p a rt of a nonvertical line.


3. The? of a function consists of th e set of all o u tp u t values.

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PowerAlgebra.com Ch ap t er 4 Ch ap t er Review 283