When we've worked with quadratic equations, I've often mentioned the confusion that resulted from the square root of a negative number. For example, what would the square root of negative one be? In 9.1 we begin to answer this question as you're introduced to, and you begin operating on, imaginary and complex numbers.
9.1 Imaginary and Complex Numbers
9.2 Continuing with Quadratic Equations
Final 5/9 to 5/15
Q1 1.8, Q2 1.9, Q3 6.2, Q4 6.4, Q5 3.4, Q6 3.2, Q7 4.3, Q8 4.6, Q9 7.2, Q10 7.1, Q11 7.3, Q12 7.3
Q13 5.3, Q14 5.6, Q15 5.6, Q16 8.3, Q17 8.5, Q18 8.6, Q19 8.7, Q20 9.1, Q21 9.1, Q22 9.2