The confusion here seems to be about how translation and other transformations apply to the equation of a circle, which is not a function in the sense of passing the vertical line test but rather an implicit relation. Let's clear up the confusion: Translation: For the circle's equation $ (x - x_1)^2 + (y - y_1)^2 = r^2 $, the $ x_1 $ and $ y_1 $ terms represent the coordinates of the center of ...
MSN: How to graph vertical lines of a linear equation, x = -1
Learn how to graph linear equations with one variable. When given a linear equation with one variable in the form x = a or y = c, the two forms of linear equations result in vertical and horizontal ...
How to graph vertical lines of a linear equation, x = -1
If we want an equation $f (x, y)$ for the line, the domain of $f$ can only be the shadow of the line on the $xy$ plane. But any nice function $f$ will have as a domain either all pairs $ (x, y)$, or almost all of them.
What is the equation for a 3D line? - Mathematics Stack Exchange
I want to derive the equation of motion for the an average skydiver free falling to earth with air resistance, most the solution online doesn't use the drag force formula to avoid making the problem
An equation is any expression with an equals sign, so your example is by definition an equation. Equations appear frequently in mathematics because mathematicians love to use equal signs. A formula is a set of instructions for creating a desired result. Non-mathematical examples include such things as chemical formulas (two H and one O make H2O), or the formula for Coca-Cola (which is just a ...