alg I function test review guide

The next test is 9-10 problems testing our knowledge of functions.  It is on Friday 1/25.

The following would be good to do if you would like to prepare.  Bring in your questions on the days before the test.

1. Draw 3 graphs that are functions.  Draw 3 graphs that are not.
2. Name the 5 parent functions.  Which have restricted domains?  Which has restricted ranges?
3. If p(x) = -11x +5, then evaluate p(-4).
4. Graph y = (x+1)2 - 6.  What is the range?
5. Graph y < 2x - 7.
6. Solve the system:  y = 5x - 2 and 2x - y = 11.
7. Write the equation for the function that has points (-1, -3), (0, 1), (1, 5) and (2, 9).
8. Write the equation for the function that has points (0, 2), (1, 1), (2, 2) and (3, 3).
9. Write the equation for the function that has the points (-1, 3), (0, 4), (1, 3), (2, 0) and (3, -5).
10. In the arithmetic sequence (-4, -1, 2, 5, 8…), what is the 42nd term?

Be prepared to do a work problem like the one of page 432 #11 and p. 492 #3.