Part 1: Crossword

3. angle formed when looking down at an object below you
6. a special relation in which, for each value of x, there is one value of y
7. greatest common factor, largest possible number that divides each term
8. the set of the second elements in a set, y-values
12. method to factor when given equation in standard form (ax² +bx + c)
15. a number that can be substituted for the variable to make the equation a true statement

1. the line segment joining a vertex of a triangle to the midpoint of the opposite side
2. the set of the first elements in a set, x-values
4. determines how many real number solutions a quadratic equation has
5. angle formed when looking up at an object above you
9. set of two or more equations that are related in some way
10. method for multiplying, otherwise known as distributive property: first, outside, inside, last
11. when a point works in a linear system, also known as the solution
13. sum or difference of one or more terms
14. a point on a line segment dividing it into two equal parts