Chapter 1 Self Test

Click    for True  and    for False. Use a calculator when necessary.

1) Evaluate f(2) if f(x) =  -x2+4x +1

       x = -5          

2) The domain of f(x) =  (x2 - 9x + 19) is  (-inf,inf)

            

3) The domain of y = | x - 2 | is [2, inf)

                

4) The range of of y = | x - 2 | is [2, inf).        

5) The function y = x3 is always increasing.

            

6) The function y = 5x2- 7x + 16 = 0 has a maximum.

         

7) The point (2, 1) is on the line 4x - 2y =6       

8) 3 is not in the domain of   y = 1/(x2- 9 )        

9) If g(t) = | t - 5| , then g(x) = x - 5

            

10)  y = x3+ 6 has a vertical shift of 6 units compared to y = x3      

11) If f(x) = x+3  and g(x) = 2x, then f(g(5)) = 13           

 

 12)  The equation of the line passing through the points (-2,5) and (4, -7 )

     is y = -2x+1.           


Note: if you did well on this, then submit the chapter quizzes and test and proceed to Unit 2 . If not, email me, or post mesages to the Webboard.