Vocabulary
Define the following vocabulary word:
Unit Rate (also known as the constant/constant of proportionality)
the ratio per one unit; relationship between 2 quantities that stays the same
ex) one T-shirt costs $7
Nylah uses 3 cups of Frosted Flakes for every 2 cups of milk she pours. What is the ratio of cereal to milk?
3:2
3/2
2=k(3)
What do the variables represent in y=k(x) ?
k= constant
y= dependent variable, right side of table
x=independent variable, left side of table
How many units away from zero is -8? In which direction?
8 units to the left
What are 2 qualities of a proportional graph?
A straight line that goes through the origin
Define the following vocabulary word:
Proportionality
relationship between 2 quantities that stays the same
Santana paid $36 for 12 bags of hot Cheetos. What is the unit rate per bag of Hot Cheetos that Santana paid?
$3 per bag
Solve for k with the y=k(x) equation.
y=6 x=2
6=k (2)
6/2= k
3=k
Solve using addition.
-3+3= ?
0
Label the x and y axes on a graph.
y=vertical
x=horizontal
Define the following vocabulary word:
Integer
a whole number that is either positive or negative
Kiara is creating her own slime recipe. She adds 5 tablespoons of glue to every 3 tablespoons of contact solution. What is the ratio of contact solution to glue?
3:5
3/5
x=40
y=80
80=k (40)
80/40=k
2=k
A and B are the same distance away from zero. They are also a zero pair. What is A+B ?
A+B=?
0
The cost per person to go to a Drake concert is $15. Write this as a coordinate pair.
(1,15)
Define the following vocabulary word:
Absolute value
(double points if you get both definitions!)
the number of units away from the zero
the value of a number without a positive or negative sign
In Ms. Baker's class, there are 10 girls and 16 boys. What is the ratio of boys to girls in its most simplified form?
8:5
8/5
Cyonna wants to fill up her pool for the summer. Below is the table that shows the relationship between the amount of time spent filling up the pool and the amount of water used in gallons. Is this a proportional relationship? Why or why not.
time (min) water (gal)
2 3
4 4
6 5
NO, there is no constant rate of proportionality between the x (time) and y (water) throughout the table.
1: k=3/2
2: k=1
3: k=5/6
Let's play the integer game.
Card 1: -7
Card 2: 9
Card 3: -6
What is my final position?
-4
Ms. Wright gave you the coordinates (1,2), (2,4), and (3,6). You plotted them on a graph, and they made a straight line that went through the origin. Which coordinate pair is the unit rate?
(1,2)
Define the following vocabulary word:
Additive Inverse
adding the opposite of a number to equal zero
Last week Kirsten earned $560 for a 20-hour week. What was her pay per hour?
$28 per hour
time (min) water (gal)
2 3
4 6
6 9
y= (3/2) (x)
I am an integer between -6 and 0.
I am greater than -3.
I am less than 0.
I am not -2.
What integer am I?
I am -1.
Draw a non proportional graph.
not straight and/or goes through the origin