Unit 4 vocabulary

2. where the value of the function f(x) increases with an increase in the value of x
4. the point at which the graph crosses the y-axis
5. the behavior of the graph as x approaches positive or negative infinity
6. a line that a curve approaches, as it heads towards infinity.
7. a root of a transformed equation that is not a root of the original equation because it was excluded from the domain of the original equation.
12. the point at which a mathematical function is no longer continuous.
14. when two or more fractions have the same denominator
15. the point at which the graph crosses the x-axis (also called the zeros)

1. a rational expression that has a fraction in its numerator, denominator or both
3. a function that can be written as a polynomial divided by a polynomial
8. the set of all outputs of a relation or function; the set of y-values for which a function is defined
9. an equation in which two ratios are set equal to each other
10. the set of all input values (x-values) that satisfy the given function without restriction
11. where the value of the function f(x) increases with an increase in the value of x
13. restriction allow us to create functions defined over numbers that work for our purposes