math vocab

2. a straight line passing from side to side through the center of a body or figure, especially a circle or sphere
4. the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations
6. the surface area is the total area covered by all the faces of a 3D object
8. a pictorial representation or a diagram that represents data or values in an organized manner
9. a type of real number which cannot be represented as a simple fraction
10. Δy/Δx
16. b in y=mx+b
17. when a factor is multiplied by the sum/addition of two terms, it is essential to multiply each of the two numbers by the factor, and finally perform the addition operation.
19. an amount of money that a government requires people to pay according to their income, the value of their property, etc.
20. a number that consists of a whole and a fractional part

1. y=mx+b
3. two equivalent ratios
5. the enclosing boundary of a curved geometric figure, especially a circle
7. a straight line from the center to the circumference of a circle or sphere.
11. a relative value indicating hundredth parts of any quantity
12. a relation between a set of inputs having one output each
13. the factor that we can multiply by itself to get that number
14. a mathematical statement that is made up of two expressions connected by an equal sign
15. a number that includes negative and positive numbers, including zero
18. a ratio that compares two quantities with different units