See also the Browse High School Equations, Graphs, Translations
Stars indicate particularly interesting answers or good places
to begin browsing. Selected answers to common questions: Direct
and indirect variation. Slope, slope-intercept, standard form. -
Pre-calculus Function Question [2/8/1996] Does the function
f(x)=3De^(1/x) have a local minimum? - Proof of Perpendicularity
[10/23/1999] How can you prove that two lines (neither vertical)
are perpendicular if and only if the product of the gradients is
equal to -1? - Quadrant [03/25/2001] What is a quadrant? -
Quadratic Formulas, Equations, Parabolas, Graphing [6/16/1996]
Given 6x^2 + x - 1 = 0, how do I find the roots, the vertex,
some coordinates, and from these graph it? - Quadratic
Inequalities [03/18/2003] When I solve (x^2 + 1)/4 greater than
or equal to (x + 2)/2 , of my final two answers, only one works.
- Quintic Equations [1/27/1996] What does Quintic mean? -
Recognizing Functions [09/30/2001] How do I know when there is a
function on a graph? -