Week 1
What is an integer?
A whole number including zero
What is a constant of proportionality?
The slope
What does each variable mean in Y=mx+b
Y is the Y-value
m is slope
x is the x-valueb is the y-intercept
What is a relation?
A mathematical similarity between two distinct variables
What is Ms. Hughes's dogs name?
Goose
What is a rational number
Whole numbers and everything in between
What are the three tests for proportionality?
Linear, passes through origin, proportionality
X=0
What is a function?
A relation that is one-to-one
What is Ms. Hughes's sisters name?
Sara
5 - (-13) = ?
18
X: 0,2,8,12
Y: 0,4,16,24
Is this proportional? If so, what is K?
Yes, K=2
5x − 7 = 2x + 8
X=5
Graph: Y=4x+5
Graph of straight line that passes through (0,5), (-1,1), and (-2,-3)
What shoe size is Ms. Hughes?
7
-8 - (-52) = ?
44
X= 0,3,5,7
Y= 0,12,13,14
Is this proportional? If so, what is K?
Not proportional
5(3x − 2) = 4x + 17
X=27/11
Graph: Y=-2x+4
Graph of straight line that passes through (0,4), (1,2), and (2,0)
What position in soccer did Ms. Hughes play?
Attacking/defensive midfielder
4 1/3 + 2 1/7 = ?
136/7 or 19 3/7
X= 0,5,10,20
Y= 0,50,100,200
Is this proportional? IF so, what is K?
Yes, K=10
4(2x − 3) = 3x + 9
X=21/5
Y=-3x-4
Graph of straight line through (0,-4), (-1,-1), and (-2,2)
Where was Ms. Hughes's dad born?
California