Across
- 1. a letter used to represent a value or unknown quantity that can change or vary
- 4. indicate the number of times a factor is being multiplied by itself.
- 7. a system of equations that has an infinite number of solutions; lines coincide when graphed
- 8. plane a set of two number lines, called the axes, that intersect at right angles
- 12. a mathematical sentence that uses an equal sign(=) to show that two quantities are equal.
- 13. a mathematical sentence that shows the relationship between quantities that are not equivalent
- 14. a value that makes the equation true
Down
- 2. the point at which the line intersects the x- or y-axis
- 3. a ratio that compares different kinds of units
- 5. a system of equations with exactly one solution
- 6. a number, a variable, or the product of a number or variables.
- 9. the set of all inputs of a function; the set of x-values that are valid for the function
- 10. the set of all outputs of a function; the set of y-values that are valid for the function
- 11. a relationship between two sets of elements
- 14. a set of more than one equation