Domain and Range
Give two other names for x
Domain
input
independent variable
(1,3) (2,5) (3,7)
What is the pattern?
Increase by 2
-1, -7, -13, -19
What does d=?
d= - 6
Define correlation
The relationship or connection between 2 things
What three dress code items did Mr. Mills mention the other morning on the PA that are not allowed?
Hats, hoods and blankets
Give 2 other names for y
Range
Dependent Variable
f(x)
Output
(1,3) (2,5) (3,7)
When x =0, what does y=?
y = 1
Is this arithmetic? 3, 6, 12, 24, ...
If so, what does d=?
No - it multiplies by 2
Is this a strong/weak and positive/negative correlation? r = 0.12376
Weak positive
When and what is the next Creek Cash Party?
Monday, November 25
Pancake Party
(1, 4) (2, 3) (2, 2) (2, 1) (3, 0)
What are the domains?
{1, 2, 3}
(1, -3) (2, -6) (3, -9)
When x = 0, what does y=?
y = 0
Is this arithmetic? 7, 2, -3, -8, ...
If so, what does d=?
Yes, d= -5
Is this a strong/weak and positive/negative correlation? r = - 0.4589732
Weak negative
What is the first button you have to press on the calculator to enter the table data?
STAT
Is this a function?
(2, 4) (3, 11) (4, 18) (5, 25)
Why or why not?
Yes, it is one-to-one
(1, 22) (2, 12) (3, 2)
What is the function rule using f (x)?
f(x) = -10x +32
What is the 25th term in this sequence?
44, 48, 52, 56, ...
140
What is the difference between a scatter plot and a linear function?
A scatter plot does not have a pattern and a linear function does
What is the explicit formula?
an = a1 + (n-1)d
Tom leaves his house and starts walking. He stops to look at his watch and realizes he is late. He starts running so he can get to where he is going on time!
What type of function is this?
Many- to- one
Jane works a job for $12 an hour. What is the function of working 8 hours?
Write the function using f(x) and solve
f(x) = 12x
f(8) = 12(8)
f(8) =96
What is the 99th term in this list?
29, 18, 7, -4, ...
-1049
What do L1 and L2 stand for in the calculator?
L1 is the domain or x
L2 is the range or y
How many credits do you need to have to become a sophomore?
And - what happens if you fail one semester of a required class?
6 credits
You have to retake the semester to earn the credit.