- Reasoning Savannah looks at the table shown and says the equation y = x - 6
r e p r e s e n ts th e p a t t e r n. M a r y says y = x + ( - 6 ) re p re se n ts th e p a tte rn. W h o is
correct? Explain. - Open-Ended Think of a real-world pattern. Describe the pattern using words and
a n e q u a t io n w i t h t w o v a r ia b le s. D e f in e t h e v a r ia b le s.
(j | Challenge 34. Temperature S u p p o s e t h e t e m p e r a t u r e s ta rts a t 60°F a n d ris e s 2°F e v e r y 4 5 m in.
U s e a ta b le , a n e q u a tio n , a n d a g r a p h t o d e s c r ib e t h e r e la t io n s h ip b e tw e e n t h e
a m o u n t o f t im e t h a t h a s p a s s e d i n h o u r s a n d t h e te m p e r a t u r e.- Use a table, a graph, and an equation to represent the ordered pairs (2, -5 .5 ),
(-3 , -0.5), (1, -4.5), (0, -3.5), (-3.5, 0), and (-1 , -2.5).
an
■N
St a n d a r d i ze d Test Pr ep^SAT/ACT 36. U s e t h e g ra p h. W h a t is t h e t o t a l p r ic e f o r 4 b a g s o f se eds?
CD $-50 CO $4.00
CD $2.00 CO $8.00- W hat is the sim plified form of the expression - 5 (n - 2)?
CE)-In CO ~5n + 10
CO -5n - 2 C D n+ 10 - If a = 3 and b = - 2 , w hat does -2b - a equal?
CO-9 CO-7 CO -1 - W h a t is t h e v a lu e o f —34?
CD-81 CO-12 CO 12
Seed Cost-aouoct)
I
A 4
k
2y4 k.... .i
*
0 2 26
Num ber o f BagsCD 81Mixed Review
Tell whether the given number is a solution of each equation.- 3x + 7 = 1 0 ;0 41. 80 = 4a; 2 0
4f* See Lesson 1-8.- 10 = —51; - 2
Give an example that illustrates each property.- Commutative Property of Addition
- I d e n t i t y P r o p e r t y o f M u l t i p l ic a t i o n
Get Read y! To p r e p a r e f o r Lesso n 2 - 1 , d o Ex er ci ses 4 7 - 5 4.
Find each sum or difference.- 12 + ( - 3 ) 48. -7 + 4 49. -8 + ( - 6 )
51. 32-(-8) 52.-18- 12 53. -15-(-14)
See Lesson 1-4.- Associative Property of M ultiplication
- Z e r o P r o p e r t y o f A d d it i o n
See Lesson 1-5.- -4 2 + 15
- -7 6 - 5
66 Chapter 1 Fo u n d a t i o n s f o r A l g e b r a