alg2 - chapter 2 - review - part 2 - 2018 -...
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ALG2 Chapter 2 Review Part 2 2018 ANSWERS
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1. Find the values of x and y that make the equation 4x + 6i = 16 + (18y)i true.
2. Find the zeros of the function
f(x) = x2 +12x + 45.
3. Find the complex conjugate of 5i 4. Write your answer in standard form.
4. Find the zeros of f(x) = 3x2 5x +3 by using the Quadratic Formula.
5. Use the discriminant to find the number and type of solutions for x2 6x = 5.
6. Graph y ≤ x2 + 3x + 4
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ALG2 Chapter 2 Review Part 2 2018 ANSWERS
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7. Solve the inequality x2 4x 9 ≥ 3 using a table and a graph.
8. Solve the inequality x2 11x + 13 ≤ 25 by using algebra.
9. The weekly profit p in dollars generated by a smoothie stand can be modeled by the function p(c) = 302c2 + 1635c 1712, where c is the cost in dollars per smoothie. What should the cost of a smoothie be to provide a weekly profit of at least $450?
10. Subtract. Write the result in the form a + bi.
(5 i) (11 3i)
11. Multiply 5i(3 4i). Write the result in the form a + bi.
12. Simplify 5i21
13. Simplify 5 + 2i 3 4i
14. Label the complex plane and graph the complex number 8 4i.