When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Horizontal line test - Wikipedia

    en.wikipedia.org/wiki/Horizontal_line_test

    The function f is injective if and only if each horizontal line intersects the graph at most once. In this case the graph is said to pass the horizontal line test. If any horizontal line intersects the graph more than once, the function fails the horizontal line test and is not injective. [2]

  3. Talk:Horizontal line test - Wikipedia

    en.wikipedia.org/wiki/Talk:Horizontal_line_test

    3 Purpose of horizontal line test? 2 comments. 4 Horizontal line test for quadrilaterals. 1 comment.

  4. Distance from a point to a line - Wikipedia

    en.wikipedia.org/.../Distance_from_a_point_to_a_line

    The line with equation ax + by + c = 0 has slope -a/b, so any line perpendicular to it will have slope b/a (the negative reciprocal). Let (m, n) be the point of intersection of the line ax + by + c = 0 and the line perpendicular to it which passes through the point (x 0, y 0). The line through these two points is perpendicular to the original ...

  5. What Is the 'Green Line Test,' Exactly? What To Know About ...

    www.aol.com/lifestyle/green-line-test-exactly...

    For premium support please call: 800-290-4726 more ways to reach us

  6. Maddox rod - Wikipedia

    en.wikipedia.org/wiki/Maddox_rod

    The strength of the prism is increased until the streak of the light passes through the centre of the prism, as the strength of the prism indicates the amount of deviation present. The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens , which refracts light rays so that a point source of light is seen as a ...

  7. Vertical line test - Wikipedia

    en.wikipedia.org/wiki/Vertical_line_test

    In mathematics, the vertical line test is a visual way to determine if a curve is a graph of a function or not. A function can only have one output, y , for each unique input, x . If a vertical line intersects a curve on an xy -plane more than once then for one value of x the curve has more than one value of y , and so, the curve does not ...

  8. What does a faint line on a rapid COVID-19 test mean? - AOL

    www.aol.com/faint-line-covid-19-test-225851470.html

    When it's time to take a test, experts want you to know what the line on your test actually means and whether a darker or lighter positive line on a COVID-19 test can tell you anything about your ...

  9. Five points determine a conic - Wikipedia

    en.wikipedia.org/wiki/Five_points_determine_a_conic

    These results seem to run counter the general result since circles are special cases of conics. However, in a pappian projective plane a conic is a circle only if it passes through two specific points on the line at infinity, so a circle is determined by five non-collinear points, three in the affine plane and these two special points. Similar ...