Unit 2 springboard

4. The fixed line which along with a fixed point called a focus
6. equation Set of points whose coordinates make the equations of the system true
8. Unfavorable circumstance or condition
10. For a function f(x) any value x such that f(x)=0
12. symmetry The line that divides a parabola into two congruent halves
14. Complex numbers whose product is a real number a bi and a-bi are complex conjugates
16. A solution of an equation
17. Provides a more favorable position
18. Points with reference to which any of curves is constructed
19. Disproves a statement or proposition
20. A quadratic function written in the form f(x)=a(x-h)2 k

1. number A number of the form bi I= √1
2. The expression b squared -4ac describes the nature of a solution of a quadratic equation
3. Proving or disproving the correctness of a system
5. A method to determine a quadratic function that best fits a set of data
7. Equation with the form ax squared bx c=0
8. To take a specified source
9. A number in the form a bi
11. square Adding a constant to a quadratic expression to transform it into a perfect square
13. Postulate or theorem which enables a conclusion to be drawn
15. The set of points in a plane that are equidistant from a fixed point
20. The highest or lowest point value of a function