1. 7

2. 2. Simplify: -3(5x - 3) -2(6x - 6)
3. Find the length & width:
x
P = 68
2x + 10
4. Solve for b: A = ½b • h

3. Vocabulary:
1. Discreet Data: Data that has a limited number of
values, with space between each value. Usually whole
numbers.
2. Continuous Data: Data with values that vary
continuously over the graph. Data that is unbroken by
space between values.
Examples:
1. The number of suitcases lost by an airline:
2. The growth of corn plants:
3. The number of ears of corn harvested.

5. function
Not a function
Not a function
function
……….

6. Graphing from an Equation
-2
-1
0
1
2

7. Function Rules

8. ……….

10. ……….

11. Function Notation: f(x)..g(x)..h(x)
is a function of
Since x can be any number, the f(x) is the output, (the
dependent variable), when a number is substituted for x.

12. Practice
Steps
1. Sub in each domain value in one @ a time.
2. Solve for y in each
3. List y values in braces.

13. H
e
i
g
h
t
P
e
o
p
l
e
C
o
s
t
S
p
e
e
d
H
e
i
g
h
t
S
p
e
e
d
A. Cost of a laptop, past 10 years B. Drag racing before hitting tree
C. World Population, last 700 years D. Person's height during lifetime
E. 3-point shot
F. Running up, then down a hill

16. 1a. Domain: {-4, -2, 3, 4} Range: {-2, 2, 1}
1b. Domain: {0, 1, 7} Range: {-6, 2, -4, 4}
2a.
2b.
Function
Not a Function
3a.
3b.
-4
-2
3
4
-1
2
1
0
1
7
-6
2
-4
4
Not a
Function

18. y = -3x + 2
y = -3(-1) + 2
y=3+2
y=5