Graphing Proportional Relationships
Equations of Proportional Relationships
Identifying Proportional Relationships
Triangles
MISC.
100
What is the ordered pair for the origin?
** Don't forget your parentheses around the ordered pair! **
(0,0)
100
Is this equation proportional? y= 3x
If so, what is the constant of proportionality? (K)
Yes
k=3
100
How do you find the constant of proportionality?
Y/X
100
Finish the statement.
All 3 angle measures of a triangle add ____________.
180 degrees.
100
Which teacher did the Tabletop Club prank?
Bonus Point: What was the prank?
Mr. Hawk
Bonus: Gift Wrap class Materials, Balloons, Hidden Toy Babies
200
A relationship between two quantities that is changing at a CONSTANT rate is:
a. proportional
b. nonproportional
a. proportional
200
Is this equation proportional? If so what is the constant of proportionality? (K=)
y= 4x + 10
Not proportional
200
Is the graph a proportional relationship? Why?
NO
Does not go through the origin
200
A triangle has angle measurements of 1°, 90°, and 89°. What kind of triangle is it?
A. Acute
B. Right
C. Obtuse
B. Right Triangle
200
What operation do you use to find the unit rate?
Division
300
What are the two rules to know if a graph is proportional?
1. The line is straight (to show a constant rate)
2. The line goes through the origin (0,0)
300
Is this equation proportional? If so what is the constant of proportionality? (K=)
y= ¾ x
proportional
k= 3/4
300
Is the table proportional?
No
300
A triangle's side measure 3cm, 3cm and 7cm. What type of triangle is it?
Equilateral, Isosceles, or Scalene?
Isosceles
300
What sport did Mr. Minnick play?
Hockey
400
Is this graph proportional? Explain WHY.
Yes, it is a straight line that goes through the origin.
400
Using this graph, What is the equation? Write your constant of proportionality as a FRACTION. 
y= 1/6x
400
Is the table proportional?
Yes it is proportional
400
Two of a triangle's angles are 34 degrees and 76 degrees.
What is the measure of the missing angle?
70 degrees
400
87
500
A recipe for lemonade is given by the equation y = 4x where x represents the cups of lemonade mix and y represents the cups of water.
If Tyler had 16 cups of lemonade mix, how many cups of water would he need for each recipe?
64 cups of water
500
Write an equation for the table given the table is proportional.
y = 3/2 x
or y = 1 1/2x
or y = 1.5x
500
How do you know if a table is proportional?
When you divide the y value with its x value, you get the same constant of proportionality in each row.
500
One angle of a right triangle measures 49°. What is the measure of the other acute angle?
41 degrees
500
When Lisa was 6 years old, her sister Lucy was half her age. If Lisa is 40 years old today how old is Lucy?
37 years old.