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Calculus I                                                   Diagnostic Quiz                      February 9, 2004

Name____________________                   R.  Hammack                              Score ______
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(1) Find all solutions:     x^2 - 1 = 3

 




(2) Find all solutions:    x^2 - x - 1 = 0

 

 




(3) Find all solutions:      x^3 + 5x^2 + 7x = x

 

 




(4)   cos(-π/6) = 3^(1/2)/2


(5)   Simplify as much as possible:  (2x - (x - 1))/(2x(x + 1)) =


(6) A straight line has slope 2 and x-intercept 3. What is its y-intercept?