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HSA 2009 Analyzing Patterns and Functions
供稿人: Dyson
What are the zero(s) of the function?
 −3, 1, 5

   2

 −1, 3
 −4, 4

2.6, −5.2, 10.4, −20.8, . . .

 

If this pattern continues, what is the sixth term?

−41.6
   41.6
   83.2
 −83.2

Which of these equations describes the relationship

 between the x-values and the y-values?

 y = x + 5
 y = 5x − 2
 y = 2x − 5
 y = x + 2

The table below shows a cubic relationship between

x and y.  If this pattern continues, what is the value

of y when x = 7?

The width and length, in feet, of a rectangular

playground are x and x + 2.  A fence costs $17 per foot.

Which of these expressions represents the cost,

in dollars, to build a fence around this rectangular

playground?

 17x(x + 2)
 17 + x + (x + 2)
 17[x + (x + 2)]
 17[x + (x + 2) + x + (x + 2)]

If this pattern continues, what is the value of y

when x is 10?

  66

 108

  89

 129

Which of these describes the range of this function?
  all real numbers
  all whole numbers 
  0 ≤ y ≤ 5
  y ≥ 0

3, 10, 17, 24, 31, . . .

 

If the pattern continues, what will be the tenth term?

 38

 66

 62

 73

2, 6, 18, 54, ...

 

If this pattern continues, what is the sixth term?

A company spends 2x + 3,000 dollars for materials

to make calculators. The cost of labor to make these

calculators is 3.2x + 3,500 dollars. Which expression

represents the difference between the cost of labor

and the cost of materials?

(3.2x + 3,500) + (2x + 3,000)
 (3.2x + 3,500) − (2x + 3,000)
(3.2x + 3,500) × (2x + 3,000)
(3.2x + 3,500) ÷ (2x + 3,000); x ≠ − 1,500
Which equation represents this relationship?
 y = x ³
 y = x − 1
 y = x 2
 y = x + 2
A

In a recipe for spice cake, the ratio of flour to milk is

3 to 1. Which of these tables shows the correct amount

of flour and milk needed to make more than one

spice cake?

B
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