I recently saw a tweet[1] about how people should go about starting startups/businesses, and it caused me to formalize my intuitions around two distinct types of tech businesses I am familiar with. Iβll call them $O(n)$ startups and $O(n^{2})$ startups. Throughout this essay, let n represent the time elapsed since launch. An $O(n)$ startup grows its key metric (revenue, users, etc.) roughly linearly with timeβdouble the time, double the metric. An $O(n^{2})$ startup accelerates, with growth compounding super-linearly over time.
Day 6
Very easy day. Used my whiteboard to suss out that this was a #QuadraticEquation (yes, I had to use my whiteboard to do this, and I'm not ashamed of being an embarrassment). Naturally, my solution uses the #QuadraticFormula to find the answers.
https://codeberg.org/Taywee/AdventOfCode-2023/src/branch/main/src/bin/day06.rs
BWAHAHAHAA ME
OK, what the hell is the #vertex form of the #quadraticequation and when was that introduced into math?
I am Gen X. Graduated end of the 80s.
Took Algebra through Calculus 1 in high school.
My 9th grader brought me a homework problem and it's a vertex form of the quadratic equation and they need to solve it for Y intercept or Maximum Value and I swear I never did any of that.
When was that introduced in 9th grade? why don't I know it? was it was just not taught in the late 80s?