Interpreting Slopes and y-Intercepts of Lines of Best Fit ... - Free Printable

Final Answer:
1a. y = 0.5x + 3
1b. Slope = 0.5; it means for every additional hour of training, the surfer’s score increases by 0.5 points.
1c. y-intercept = 3; it means if a surfer trains 0 hours, their expected score is 3.
2a. y = -0.5x + 8
2b. Slope = -0.5; it means for every additional hour of screen time, the average minutes to fall asleep increases by 0.5 minutes (they take longer to fall asleep).
2c. y-intercept = 8; it means if someone has 0 screen time, they fall asleep in 8 minutes on average.

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