A y x 2 b y 2 x c x y 2 d x 2 y cst00516 57 which is

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A y = x 2 B y = 2 x C x = y 2 D x = 2 y CST00516 57 Which is the first incorrect step in simplifying 4 log 4 ? 64 4 Step 1 : log 4 = log 4 4 log 4 64 64 Step 2 : = 1 16 Step 3 : = 15 A Step 1 B Step 2 C Step 3 D Each step is correct. CST00517 CALIFORNIA STANDARDS TEST 17 This is a sample of California Standards Test questions. This is NOT an operational test form. Test scores cannot be projected based on performance on released test questions. Copyright © 2009 California Department of Education.
Released Test Questions Algebra II 58 Jeremy, Michael, Shanan, and Brenda each worked the same math problem at the chalkboard. Each student’s work is shown below. Their teacher said that while two of them had the correct answer, only one of them had arrived at the correct conclusion using correct steps. Jeremy’s work Shanan’s work 3 7 x 3 3 7 x 3 x x = x x = 7 7 x x = x 10 , x 0 = 1 4 , x 0 x Michael’s work Brenda’s work 3 7 x 3 3 7 x 3 x x = x x = 7 7 x x = x 4 , x 0 = 4 , 0 x x Which is a completely correct solution? A Jeremy’s work B Michael’s work C Shanan’s work D Brenda’s work CST10301 59 A student showed the following steps in his solution of the equation below, but his answer was not correct. log 5 ( 2 x 2 3 x + 1 ) log 5 ( x 1 ) + log 5 125 = 6 Step 1 : log 5 ( 2 x 1 )( x 1 ) log 5 ( x 1 ) + = 3 6 Step 2 : log 5 ( 2 x 1 )( x 1 ) log 5 ( x 1 ) = 3 Step 3 : log 5 ( x 1 ) = 3 Step 4 : x = 1 125 Step 5 : x = 126 In which step did he make his first error? A Step 1 B Step 2 C Step 3 D Step 4 CST10336 60 Which is the first incorrect step in simplifying ( ) 3 x 2 ( ) 1 x 5 ? 1 S ep 1: ( ) 3 t x 2 ( ) x 5 = x 6 x 5 1 Step 2: = x 6 x 5 x 6 Step 3: = x 5 Step 4: = x A Step 1 B Step 2 C Step 3 D Step 4 CST00139 CALIFORNIA STANDARDS TEST 18 This is a sample of California Standards Test questions. This is NOT an operational test form. Test scores cannot be projected based on performance on released test questions. Copyright © 2009 California Department of Education.
Released Test Questions Algebra II CALIFORNIA STANDARDS TEST 61 A certain radioactive element decays over time according to the equation t 1 y = A 300 , 2 where A = the number of grams present initially and t = time in years. If 1000 grams were present initially, how many grams will remain after 900 years? A 500 grams B 250 grams C 125 grams D 62.5 grams CST00367 62 Bacteria in a culture are growing exponentially with time, as shown in the table below. Bacteria Growth Day Bacteria 0 100 1 200 2 400 Which of the following equations expresses the number of bacteria, y , present at any time, t ? A y = + 100 2 t B y = ( ) 100 i ( ) t 2 C y = 2 t t D y = ( ) 200 i ( 2 ) CST10253 63 If the equation y = 2 x is graphed, which of the following values of x would produce a point closest to the x -axis?

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