Across
- 1. a pictorial representation or a diagram that represents data or values in an organized manner.
- 3. a quantity that can be changed and is not fixed.
- 5. a mathematical statement that shows that two mathematical expressions are equal.
- 6. putting numbers in place of letters to calculate the value of an expression .
- 9. no value, not even 0, which would satisfy the equation.
- 10. the y-coordinate of a point where a line, curve, or surface intersects the y-axis.
Down
- 2. lines in a plane that are always the same distance apart.
- 4. the process of solving a system of simultaneous equations by using various techniques to remove the variables successively.
- 7. A value or values which, when substituted for a variable in an equation, make the equation true.
- 8. a measure of its steepness.