PRECALCULUS ALGEBRA, TEST 1 SEPTEMBER 1, 2006

1. Divide and write your answer in a + bi form:

(3 – i) / (2 + i)

2. Solve the quadratic equation:

2x² - 5x + 4 = 0

3. Graph the quadratic function. Clearly state what features you use to sketch:

f(x) = 4x^{^}2 - 24x + 15.