University:
Santa Ana College
Course:
MATH 084 | Beginning and Intermediate Algebra
Academic year:

2019
Views:

173

Pages:

2
Author:

Amelie Moss

1) Convert to Logarithmic form: 2m 18 2) Without a calculator find the value of: Log81 Log2 8  3) Solve the equation: 3(63x)  1 27  4) Solve: Log5 x  2  5) Solve: Log(3x)  Log4  Log(x 1)  6) Solve the equation, give the answer to 4 decimal places: 2x 7  7  7) Solve: e 2x  7  8) Express as a single logarithm: 2Loga m  Loga n  5Loga p  Logk 9) Expand the Log expression:  x2 y3 10) Use a calculator to find the value of each:  b)  3e 4 a) 5Ln8 11) Solve the equation: Log6 (x 2 )  Log6 (6x  7)  0  12) Graph the exponential function: y  2x  3  13) Find the inverse f 1 (x)  given f (x)  14) Givenf (x)  3x  6 and   2x  5 3 g(x)  x 2  3 find ( f g)(x) and (g f )(x)  c)  Log8 5 Log13 Answers 1) Log218  m 2) 0 + 3 = 3 3) x = 3 4) x = 1/25  5) x = 4 6) x = -4.1926 Ln7 7) x = 2 m 2n 8) Loga 5 p  9) Logk (x  2)  3Logk y   10) a) 10.4 b) – 163.8 c) – 4.2 11) x = 7, x = -1 12) plot the points for the graph 13) f 1 (x)  3x  5 2 X 0 1 2 3 -1 -2 -3 Y -2 -1 1 5 -2.5 -2.75 -2.875 14) f g(x)  3x 2  3 and g f (x)  9x 2  36x  39

Math 084 Placement Test 8

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