Algebra 1 Common Core Student Edition, Grade 8-9

4 Got It? 1. W h a t a r e t h e v a r i a b l e s i n e a c h g r a p h? D e s c r i b e h o w t h e v a r i a b l e s a r e
related at various p o in ts on the graph.
b.
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Tables and graphs can b o th show relationships betw een variables. D ata fro m a table are

o f t e n d is p la y e d u s in g a g r a p h t o v is u a lly r e p r e s e n t t h e r e la t io n s h ip.

Video Downloads

Matching a Table and a Graph

Multiple Choice A band allowed fans to download

its new video from its Web site. The table shows the

total number of downloads after 1 ,2 ,3 , and 4 days.

Which graph could represent the data shown in

the table?

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TO O

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fT3~a
TO O
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Day
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TO~a
TO O
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(^21) o
o
Day
(^0) Day (^0) Day
3
4
1011
3455
10,426
The relationship
represented by a table
-:,T
A graph that could
represent the relationship
Compare the pattern of changes
in the table to each graph.
I n t h e ta b le , th e t o t a l n u m b e r o f d o w n lo a d s in c re a s e s e a c h d a y , a n d e a c h in c r e a s e is
n o t ic e a b ly g r e a te r t h a n t h e p r e v io u s in c r e a s e. So th e g r a p h s h o u ld r is e f r o m l e f t t o r ig h t,
a n d e a c h r is e s h o u ld b e s te e p e r t h a n t h e p r e v io u s ris e. T h e c o r r e c t a n s w e r is B.
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[ L e s s o n 4 - 1 U s i n g G r a p h s t o R e l a t e T w o Q u a n t i t i e s 235