What is the difference between equation and formula? An equation is meant to be solved, that is, there are some unknowns A formula is meant to be evaluated, that is, you replace all variables in it with values and get the value of the formula Your example is a formula for mpg But it can become an equation if mpg and one of the other value is given and the remaining value is sought
What is the equation for a 3D line? - Mathematics Stack Exchange I love your answer for a line equation in the form of z = f (x, y) Unfortunately calculating square roots can be impractical from the calculational standpoint and hence I really doubt any plotting software will be able to graph it correctly
simple geometry question- equation of cylinder The equation of an object is a way of telling whether a point is part of an object -- if you substitute the coordinates of the point into the equation and the equation is true, then the point is on the object; if the equation is not true for that point, then the point is not on the object
Notation for rounding in equation - Mathematics Stack Exchange I'm wondering if there is a symbol or notation for Round to the nearest 10th For example, the area of a circle with a radius of 45 feet, rounded to the nearest square foot, could be written as, A =
Transformations of the circle equation - Mathematics Stack Exchange I know to translate the circle equation we just need to change the values in the brackets of the general circle equation $ (x-x_1)^2+ (y-y_1)^2=r^2$ , and in order to dilate a circle we need to double the value of the radius i e times by $2^2$, however when it came to stretching and squeezing, I am confused if there is even a predictable method
What is the difference between an identity, an equation and a . . . Equation means equality They are both related to the word equal If such an equality is true for all values of the variable, it is called an identity, e g , $\sin^2x+\cos^2x=1$ is true for all x If however the equation in question only holds for some values, which one is supposed to determine, then it's called conditional, and its variable is termed an unknown
linear algebra - Equation of a plane passing through 3 points . . . First consider the equation we use to describe a plane: $$ ax + by + cz + d = 0 $$ Why is it this way? let's first imagine a way to describe the point set of a plane: a plane must have a normal vector, and an “offset” to determine its exact position What about the points on it? All the points are the same distance away from origin point
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