Engineering↗
Completing the Square
Turning any quadratic into a perfect square plus a constant, the one rule that makes it work, and why the vertex falls out of the result for free.
Every page in the KEVOS library tagged parabola. 3 pages.
Turning any quadratic into a perfect square plus a constant, the one rule that makes it work, and why the vertex falls out of the result for free.
Two routes to the turning point, the four questions a complete graph answers, and a worked sketch from start to finish.
The parabola as the graph of a second-degree function, how the leading coefficient decides its direction, and reading the range from the turning point.