Vocabulary
Unit Rate
Linear Equations
Graphing
Random Math
100
Definition: A comparison of two or more quantities
Ratio
100
50 miles per hour is an example of what vocabulary term?
A unit rate
100
What is the constant of proportionality?
y = 6.5x
k = 6.5
100
What is the coordinate point for the origin?
(0,0)
100
What is the opposite of 10?
-10
200
Give an example of a unit rate
Any rate with a denominator of 1. Units must be given in the answer.
Example: 50 miles per hour
200
Ava drives 35 miles in 2 hours. How far can she drive per hour?
7.5 miles per hour
200
How do you find the constant of proportionality?
k = y/x
200
Does the following graph show a proportional relationship? Explain.
No, the line does not go through the origin
200
0.5 + 1/4
3/4 or 0.75
300
Describe what a proportional relationship is.
If ratios are equivalent and they have the same unit rate.
300
Tia skateboards 2/3 of a mile every 1/6 of an hour. What is the unit rate?
4 miles per hour
300
Find the constant of proportionality from the table.
k = 16
300
What does the point (1, 49) represent in the situation?
In 1 hour they go 49 miles.
300
-44 - (- 49)
5
400
The variable k represents two terms that have the same meaning. What are the two terms?
Constant of proportionality
Unit rate
400
Does the amount money collected and number of glasses have a proportional relationship? If so, find the constant of proportionality.
Yes because the constant of proportionality is $0.75 per cup.
400
The relationship between x and y is proportional. When x is 29, y is 275.5.
Write an equation that related y and x.
y = 9.5x
400
Using the equation y = 2x, name one coordinate pair that would also be on the line besides (0,0)
(I will draw on the board)
400
What is the prime factorization of 30?
2 * 3* 5
500
The constant of proportionality is the same as the unit rate. There is another term with the same definition that begins with the letter "S". What is the term?
Slope
500
At a supermarket, a 6oz bottle of salad dressing costs $1.56. A 14oz bottle costs $3.36. A 20oz bottle costs $5.60.
Which bottle has the lowest cost per oz?
14 oz per bottle (24 cents)
500
For ever dozen bagels you buy, the costs increases $15. Write an equation that represents the cost, y, and the number of bagels, x?
y = 1.25x
500
Draw a graph of the equation y = x where x represents items and y represents money spent.
Graph needs to go through the origin and be a straight line following a 1:1 ratio.
500
What is the formula for the circumference of a circle?
pi* d
pi* 2r