Linear regression and prediction
Two-variable data and models · Stage 3
Recognize the pattern
Use the fitted model for prediction, then interpret units.
Useful ruley=mx+b
Try it before reading the solution
A fitted line is y=3x+4. Predict y when x=5.
This teaching example is original and is not an official SAT question.
Reasoning
3(5)+4=19.
Answer19
03 · Next step
See membership →Ready for adaptive practice
Practice questions remain in English, as on the SAT.