y = mx + b. Drag the red point (or the slider) to pick a new x — watch the model read the prediction straight off the line, the same way as the in-class figure.The line was fit on 5 students (1–5 hours studied). Slide past x = 5 and the model is extrapolating — predicting outside any data it actually saw. Keyboard: focus the red point, use left/right arrow keys.
Built to accompany COSC 3430 (Artificial Intelligence). The line's slope (7.5) and intercept (41.5) are the real values scikit-learn's LinearRegression fits on this data — nothing here is a canned animation.