Quadratic Vocabulary

5. Form another way of writing the equation of a line.
6. Number a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit
9. the point at which the graph of an equation crosses the x-axis.
10. of Symmetry A line through a shape so that each side is a mirror image.
11. simplifying expressions, simplifying fractions, and solve equations
13. where you change the sign in the middle of two terms
14. Unit one that when squared gives a negative result
16. the value of a function at a certain point in its domain, which is greater than or equal to the values at all other points in the immediate vicinity of the point
18. the highest or lowest point, also known as the maximum or minimum of a parabola.
19. a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number

1. members x of the domain of f such that f(x) vanishes at x
2. Equation an equation containing a single variable of degree 2
3. a number used to multiply a variable
4. the Square a technique used to solve quadratic equations, graph quadratic functions, and evaluate integrals
7. A mathematical expression that is the sum of three monomials
8. An expression that has a square root, cube root, etc.
12. a plane curve generated by a point moving so that it’s distance from a fixed point is equal to its distance from a fixed line
15. Root number is a value that, when multiplied by itself, gives the number
17. the place where the graph has a vertex at its lowest point