pre calc honors vocab

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Across
  1. 6. circle used to
  2. 8. describes two vectors which are perpendicular to one another.
  3. 9. the set of coplanar points such that the sum of the distances from each point to two distinct coplanar points (called the foci) is constant.
  4. 11. the line segment (whose ends are vertices) which passes through the foci of an ellipse.
  5. 12. a shortcut alternative to long division, which uses only the coefficients of the divisor and dividend; it is only applicable if the divisor is linear.
  6. 15. the length of a vector
  7. 16. vector with magnitude 1.
  8. 18. the value by which the graph of a trigonometric function such as sine or cosine is stretched; the amplitude is always a positive value.
  9. 19. double of radius
  10. 20. half of diameter
Down
  1. 1. trigonometric function pairs which differ only in the presence or absence of the prefix "co," such as sine and cosine.
  2. 2. e=c/a
  3. 3. always positive
  4. 4. a rectangular collection of numbers, arranged in rows and columns, surrounded by a single set of brackets on either side.
  5. 5. a set of coplanar points equidistant from a fixed point (the focus) and a fixed line (the directrix).
  6. 7. an acute angle that helps calculate trigonometric function values of an oblique angle.
  7. 10. the line segment, perpendicular to the major axis, which passes through the center of an ellipse and has endpoints on the ellipse.
  8. 13. functions such that f (−x) = −f (x)
  9. 14. the segment perpendicular to the transverse axis at a hyperbola's center.
  10. 17. a term used to describe a function for which every output has only one corresponding input. Only one-to-one functions have inverses.