Graphing Proportional Relationships
More Graphing Proportional Relationships
Equations of Proportional Relationships
Circles
Random
100
What ordered pair represents the origin?
(0, 0)
100
What are 2 ways to tell if a graph is proportional?
The graph is a line
The graph passes through the origin
100
Is this equation proportional? If so, what is the constant of proportionality? (k)
y = 3x
Yes
k=3
100
Name a radius and a diameter
Radius: OA, OB, or OC
Diameter: AB
100
Is the graph a proportional relationship? Why?
NO
Does not go through the origin
200
Is this relationship proportional?
No
200
Is this graph proportional?
YES
200
Is this equation proportional? If so what is the constant of proportionality? (k)
Not proportional
200
What are the formulas for circumference and area of circles?
C=pid
A=pir^2
200
Which of the following are true?
A: the diameter and circumference of a circle are proportional
B: the radius and area of a circle are proportional
A: the diameter and circumference of a circle are proportional
300
Write an equation that relates gallons of water used (w) to time (m).
w = 5m
300
Write an equations that represents the proportional relationship between miles and hours.
d = 6/5 x
300
What is the equation of the proportional relationship? 
y= 1/6x
300
What is the Circumference of this circle?
31.4 cm
300
Which table does not show a proportional relationship?
A
400
Write an equation that represents the proportional relationship between strawberries and bananas. Indicate the meaning of each variable.
y = 2.5x
400
How would you label the x-axis and the y-axis?
x-axis: Cups of bananas
y-axis: Cups of strawberries
400
Kiran walked at a constant speed. He walked 1 mile in 15 minutes. Write an equation that represents the distance, d, that Kiran walks in t minutes
d = 1/15 t
400
What is the area of this circle?
50.24 cm2
400
What is the perimeter, rounded to the nearest hundredth, of the figure?
18.71 units
500
The graph shows the cost C in dollars of w pounds of peanuts, a proportional relationship. Which of the statements is true?
A: 9 pounds of peanuts costs $28.80
B: 5 pounds of peanuts costs $17.50
B: 5 pounds of peanuts costs $17.50
500
The graph shows the cost C in dollars of w pounds of peanuts, a proportional relationship. Which of the statements is true?
A: 2.5 pounds of peanuts costs $1.
B: 1 pound of peanuts costs $2.50.
B: 1 pound of peanuts costs $2.50.
500
Emma rode her bike at a constant speed. She rode 1 mile in 8 minutes. Write an equation that represents the distance, d, that Emma rides in t minutes.
d = 1/8 t
500
What is the area of the figure below?
13.42 ft2
500
What is the area, rounded to the nearest hundredth, of the figure?
23.07 square units