Algebra 1 Common Core Student Edition, Grade 8-9

,(^ Challenge 19. Track T h e s k e tc h a t t h e r i g h t s h o w s th e d is ta n c e

th r e e r u n n e r s tr a v e l d u r i n g a ra c e. D e s c r ib e w h a t

o c c u r s a t t im e s A , B, C, a n d D. I n w h a t o r d e r d o th e

runners finish? Explain.

Three-Person Race

20. Reasoning T h e g r a p h a t th e r i g h t s h o w s t h e v e r t ic a l
    d is ta n c e t r a v e le d as P e rs o n A w a lk s u p a s e t o f s ta irs
    a n d P e r s o n B w a lk s u p a n e s c a la to r n e x t t o th e s ta irs.
    C o p y th e g r a p h. T h e n d r a w a l in e t h a t c o u ld
    r e p r e s e n t t h e v e r t ic a l d is ta n c e t r a v e le d as P e r s o n C
    r id e s t h e e s c a la to r s ta n d in g s t ill. E x p la in y o u r
    reasoning.

Escalator and Stairs

SAT/ACT

St a n d a r d i ze d Test Pr ep

21. T h e g r a p h a t t h e r i g h t s h o w s y o u r d is ta n c e f r o m h o m e as y o u w a lk t o t h e

b u s s to p , w a it f o r t h e b u s , a n d t h e n r id e th e b u s t o s c h o o l. W h ic h p o i n t

r e p r e s e n ts a t im e t h a t y o u a re w a it i n g f o r t h e b u s?

(X ) A C O C

CSC B CSC D

Distance From Home

B

A

iii n u iiu

/D

Time

22. W h a t is t h e s o lu t io n o f - 2 x < 4?
    CEC x < 2 C S C * > 2 CHC x < - 2 CTC x> -2

Short
,Response

•*

23. Y o u e a r n $ 8 .5 0 p e r h o u r. T h e n y o u r e c e iv e a ra is e t o $ 9 .3 5 p e r h o u r. F in d t h e p e r c e n t
    in c re a s e. T h e n f i n d y o u r p a y p e r h o u r i f y o u r e c e iv e t h e s a m e p e r c e n t in c r e a s e t w o
    more times. Show your work.

Mixed Review

Let A = { - 3,1,4}, B = {x | x is an odd number greater than - 2 and less

than 10}, and C = {1,4,7,12}. Find each union or intersection.

24. A U B 25. AD B 26. BUC

Get Read y! To p r e p a r e f o r Lesso n 4 - 2 , d o Ex e r ci se s 2 8 a n d 2 9.

Use a table, an equation, and a graph to represent each relationship.

J

4b See Lesson 3-8.

27. AH C

4b See Lesson 1-9.

28. D o n a ld is 4 y e a rs o ld e r t h a n C o n n ie. 29. Y o u m a k e 3 c a rd s p e r h o u r.

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