Graph lab
Drag the sliders, watch the curve move, then ask the tutor why it changed.
1. Pick a lesson
2. Parabola
y = 1(x + 0)² + 0
y = 1(x + 0)² + 0. Value at x = 0 is 0.00.
a flips and stretches the parabola; c and d move the turning point.
3. What the tutor says
Move a slider, then ask why — the tutor explains the rule, not just the picture.