Tables
Equations
Graphs
Proportional Graphs?
Unit Rate
100
Find the constant.
k=1.5 cups
100
Write the equation of the relationship of two quantities if you know the constant of proportionality is 5.
what is y=5x
100
Why is this graph not proportional?
What is it's not going through the origin
100
Are proportional graphs straight or curved?
straight
100
Find the unit rate.
I can type 60 words in 2 minutes.
30 words per minute
200
Write the equation if bales of hay is the Y variable and # of mules is the X variable?
y=1/2x
200
What equation represents the graph?
what is y=2/3x
200
What is the constant of proportionality?
k=6
200
Do proportional graphs form a line or an x shape?
a line
200
Find the unit rate.
355 miles in 5 hours
71 miles per hour
300
Is the following ratio table proportional?
NO
300
Becca completes 42 math problems in 12 minutes. Write an equation to represent how long each problem takes.
y=3.5x
300
What does the constant of proportionality tell you in this graph?
What is every 1 minute 0.4 miles completed
300
What special point must all proportional graphs go through?
the origin or (0,0)
300
Find the unit rate.
$37.29 for 2 pairs of jeans.
$18.64 per pair of jeans
400
Complete the proportional table by writing an equation and using it to solve for the missing number. You MUST SHOW YOUR EQUATION and WORK.
What is 171
400
If bales of hay vary directly with the number of mules, what is the equation of the table?
y=(1/2)x
400
What is the constant of proportionality for line B?
k=1.25
400
How do you know a graph is proportional?
What is a straight line through the origin.
400
Doug entered a canoe race. He rowed 3 ½ miles in ½ hour. What is his average speed in miles per hour.
7 miles per hour.
500
What is
4 liters
132 km
500
If water used varies directly with time, what is the equation of the relationship?
y=5x
500
a) What is the constant of Proportionality?
b) What does the point (30,5) represent?
a) k=1/6
b) 30 pounds on Earth= 5 pounds on the moon
500
Can a proportional graph be a straight vertical line?
No
500
Stella writes 1/7 of a page in 1/15 of a minute. How many minutes does it take her to write a full page?
7/15 minute