Mathematics cross word

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Across
  1. 2. a mathematical relationship or rule expressed in symbols
  2. 4. a symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side. The path of a projectile under the influence of gravity ideally follows a curve of this shape
  3. 5. a line that continually approaches a given curve but does not meet it at any finite distance.
  4. 8. Decay describes the process of reducing an amount by a consistent percentage rate over a period of time. It can be expressed by the formula
  5. 9. a whole number; a number that is not a fraction.
Down
  1. 1. involving the second and no higher power of an unknown quantity or variable
  2. 3. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
  3. 5. the branch of mathematics dealing with the properties and manipulation of numbers
  4. 6. relating to or involving algebra
  5. 7. function a function of the form. where b is a positive real number, and the argument x occurs as an exponent. For real numbers c and d, a function of the form is also an exponential function, since it can be rewritten.