The equation of a disaster: what went wrong in Lac-Mégantic

From Nantes to Lac-Mégantic, the tracks are on a grade of 1.2 per cent – meaning that for every 100 metres of distance, the vertical drop is 1.2 metres ... An air-brake line is charged at 90 pounds per square inch, and when an engineer reduces the ...Differential Calculus Introduction: Simple Polynomial Equations

“Differential calculus” is a big phrase but a very useful part of ... Neither is a function that would graph a vertical line; that slope would be infinite because any change is the ‘y’ direction is divided by the zero change in the ‘x’ direction.- It’s not that it’s wrong. It is perfectly true that straight lines, and only straight lines, can be expressed with equations of that form. But defining a straight line in terms of the form of its equation is like defining an even number as one whose ...
This Is What Math Equations Look Like in 3-D

In this model of a mathematical surface, every aspect of every swoop, dip and pinch is encoded in a single equation. That equation has a singularity where the plaster would be drawn infinitely thinly. In a concession to physics, the final gap is bridged by ...Slope of a Line - MathHelp.com - Algebra Help

Problems involve lines with positive slopes, negative slopes, slopes that must be reduced, slopes of 0 (horizontal lines), and "no slopes"(vertical lines ... that is introduced in the study of linear equations.

- What is the equation of a line passing through (1,4), (-5,8)?
- What is the general form of an equation of a line?
- What is a perpendicular line to equation y=2/3x-1?
- Is the line x=4 vertical or horizontal?
- What is an equation of a line?
- What is the equation for the slope of a line and what's the standard form equation?
- What is the equation of a vertical line through point (2,-4)?
- If y=-3 then is the graphed line vertical?

- Write the equation of the line with a slope.... please ...undefined slope is a vertical line x ... A line passing through two points ... The slope of a vertical line is undefined and has equation of the form x ...
- Which two points lie on a line with an undefined slope?Any two points on a vertical line ... What is the equation of the line with an undefined slope ... A vertical line has an undefined slope. If a line is vertical, ...
- Vertical line definition. (Coordinate Geometry) - Math ...... for a vertical line the slope is undefined. ... Distance between two points; ... Equation of a line in point-slope form y=m(x-Px)+Py ;
- Algebra: undefined slope!, undefined slope, equation of a ...... with an undefined slope. The equation for a vertical ... form for the line whose slope is undefined and ... equation in standard form of the line ...
- The Slope of a Vertical Line is UndefinedThe slope of a vertical Line is undefined because anything divided by zero is undefined. Learn how to use a graph and the slope formula to calculate an undefined slope.