madisyn

2. the vertical line on a graph that runs from bottom to top
5. there is no value for the variable(s) in an equation (or system of equations) that will make the equation true
7. a function is decreasing on an interval if its output values decrease as its input values increase within that interval
9. a measurement of its steepness, also known as its gradient or incline
10. the difference between the highest values and lowest values in a given set of numbers
13. when there's only one specific value of the variable that makes the equation true
15. the horizontal plane of a graph in a Cartesian coordinate system

1. a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero
3. the point where a line or curve intersects the x-axis on a graph
4. a number that when multiplied by itself produces the original number
6. a number representing an empty quantity
8. a real number that cannot be expressed as a fraction or ratio of two integers
11. the point where a line or curve crosses the y-axis on a graph
12. the set of values that we are allowed to plug into our function
14. something is becoming larger in size, quantity, or value