5-20-2010

     The following are the answers to the practice test for L1-L115, for my Alg 1 class that meets 1st period from 8:26 - 9:36 AM
       1) 6
       2)  x is greater than or equal to 9
       3) [4(y^2) / a]
       4) square root of 218
       5) x = -3 ; x = 2
       6)  draw the two lines, shade above the first but below the second
       7) the graph is a thinner version of the absolute value graph
       8) -(x-7)
       9) (4, 26) & (-4, -38)
      10) (-2,8) (-1,1) (0,0) (1,-1) (2, -8)
      11) 2 times ; A = 5000(2^x) ; $20,000
      12) (x+8)(x-9)
      13) there will be 2 solutions since the discriminant is positive
      14) 20 and -20
      15) x = 196
      16) 20 and -20
      17) 6 and -1
      18) yes
      19) -2 < x < 2
      20) x > 2 & x < -18