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EOC Algebra B
供稿人: Linstrom
A tree is 15 feet tall and is  held up by a
25 foot guy wire.  How far should the wire
be staked from the trunk of the tree?
  10 feet
   20 feet
  29 feet
  60 feet
15
ground
25
Grapes cost $1.20 per pound
and cherries cost  $2.50 per pound.
If you spend $7.30 and you buy 3 more
pounds of grapes than cherries, Which system
of equations represents this?
  1.2c + 2.5g = 7.30     and g = c + 3
  1.2c + 2.5g = 7.30     and   c = g + 3
   1.2g + 2.5c = 7.30     and   g = c + 3
  1.2g + 2.5c = 7.30     and   g = 3c
Adults cost $5 and children cost $1.50  for
admission to the museum.  15 people went
and the total cost was $33.  How many children
went to the museum?
   12
    9
   6
    3
Gary threw a ball that followed the quadratic
equation h = -16t2 + 45t + 4 where h=height
(feet) and t=time (seconds).  What was the
maximum height of the ball?
    35.6 feet
   33 feet
   2.9 feet
   1.4 feet
A rocket was lauched following the equation
h = -16t2 + 112t  where h = height(feet) and
t = time (seconds).  How long did it take
the rocket to hit the ground?
    1.2 seconds
    3.5 seconds
    7 seconds
   192 seconds
The table represents Loren's bank account
balance if she earns 4.5% interest.  Which
equation represents this?
Balance
Year
  y = 9x + 200
  y = 200 (0.045)x
   y = 200 (1.045)x
    y = (200 + 1.045)x
200
0
209
1
218.41
2
228.23
3
   y = 3x
   y = x + 8
    y = x
   y = x2
What is the parent function to
y = 3x + 8
solve  for x:

2x + 7 = 5x - 17
-8
  3.4
    8
   -1.7
solve for x:

x2 + 16 = 10x
   3
  0 & 6
    2 & 8
   -2 & -8
The area of a rectangle is  2x2 + 10x - 12
The length is 2x - 2.  What is the width?

2x - 2
    x + 6
   2x2 + 8x - 10
   2x + 6
   x - 6
?
A = 2x2 + 10x - 12
Simplify

2x2 + 4x - (3x -5) + x2
    3x2 + x + 5
   3x2 + x - 5
   2x2 + 7x + 5
   2x2 + x + 5
Bill bought 2 shirts for a total of $45.  The more
expensive shirt cost twice as much as the
cheaper shirt.  What was the cost of the two
shirts?
  $20  &  $25
  $20  &  $40
 $15  &  $30
   $10  &  $35
Simplify
3x4yz3
xyz
   3x4yz3
   3x3yz2
    3x3z2
   x3z2
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