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Proportional and Non-Proportional Relationships

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by

Aida Garcia

on 29 September 2014

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Transcript of Proportional and Non-Proportional Relationships

Proportional or Non-Proportional?
Identify if the equation, table, graph
or scenario is proportional. Click on
the next slide to see if you are correct.
y = 7x
y = -2x + 2
Yes, in form
of y = kx
No, not in the form of
y = kx...has + 2
8/1 = 8
16/2 = 8
24/3 = 8
32/4 = 8
40/5 = 8
Yes, 8 is the
constant
ratio
-16/-4= 4
-12/-2= 6
-4/2 =-2
0/4 = 0
Not Proportional
doesn't have a
constant ratio
4/1= 4
5/2 =2.5
8/5=1.6
Not Proportional
doesn't have a
constant ratio
Schlitterbahn charges $12.50 per student for admission to the park.
Yes is proportional charges
$12.50 per student.
no deposit fees or
additional charges
PTA needs to buy sodas
for the school dance.
Each soda cost $0.75
Yes is proportional
$0.75 per soda and
no extra charges.
Input 5 generates output 8
Input 9 generates output 20
Input 13 generates output 32
x y
5 8
9 20
13 32

8/5 = 1.6
20/9=2.22
No, not proportional does NOT have a constant ratio
Yes, the graph is a
straight line
and goes through
the origin.
Not proportional, the points line up in a straight line but they do NOT go through the origin starts at (0, 2)
x y
1 4
2 6
3 10

4/1= 4
6/2 = 3

Not proportional
does not have a constant ratio
Full transcript