Math Crossword

4. The set of all input values for a relation or function.
6. A fraction that is equal to 1.
8. The set of all output values for a function or relation.
10. A graph represents numerical information spatially. The numbers may come from a table, situation (pattern), or equation (or inequality). Most of the graphs in this course show points, lines, and/or curves on a two-dimensional coordinate system, or on a single axis called a number line.
12. When one quantity changes in a way that does not depend on the value of another quantity, the value that changes independently is represented with the independent variable.
13. A function is decreasing if the y-values decrease as the x-values increase.
16. A way of writing a number as a product of two factors separated by a multiplication sign. The first factor must be less than 10 and greater than or equal to 1. The second factor has a base of 10 and an integer exponent.
17. An exponential function in this course has an equation of the form y = ab^x + k, where a is the initial value, b is positive and is the multiplier, and y = k is the equation of the horizontal asymptote.
18. When a rule expressing a function is written using _____
19. The output value is the dependent variable in a relation. When we substitute the input value into our equation, the result is the output value.
20. A relationship between two equal ratios.

1. The point(s) where a graph intersects the y-axis. A function has at most one y‑intercept; a relation may have several. The y‑intercept of a graph is important because it often represents the starting value of a quantity in a real-world situation.
2. The point(s) where a graph intersects the x-axis.
3. When one quantity’s value depends on one or more others, it is called the dependent variable.
5. The absolute value of a number is the distance of the number from zero. Since the absolute value represents a distance without regard to direction, it is always a positive real number.
7. The input value is the independent variable in a relation. We substitute the input value into our equation to determine the output value.
9. A mathematical sentence in which two expressions appear on either side of an “equals” sign (=), stating that the two expressions are equivalent.
11. A polynomial function of degree one or zero. The graph of a linear function is a line.
14. A function is decreasing if the y-values increase as the x-values increase.
15. A relationship in which for each input value there is one and only one output value.