Lesson 2 Homework Practice: Lines Of Best Fit

b) What does the slope mean in a real-world context? (Write a possible interpretation.)

| Age (years) | 1 | 2 | 3 | 4 | 5 | 6 | 8 | |-------------|---|---|---|---|---|---|---| | Price ($1000)| 20| 18| 15| 13| 10| 8 | 4 |

_________________________ Date: _________________________ Period: _________________________ lesson 2 homework practice lines of best fit

| Hours Studied (x) | 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | |------------------|----|----|----|----|----|----|----| | Test Score (y) | 55 | 65 | 70 | 75 | 80 | 85 | 95 |

(2, 4), (3, 5), (4, 7), (5, 8), (6, 9), (7, 12), (8, 14) b) What does the slope mean in a real-world context

a) Draw a line of best fit through the data.

c) Predict the test score for a student who studies : ________ 2. Age of Car vs. Value A used car dealer records the age of cars (in years) and their selling price (in $1000s). Age of Car vs

b) Equation of line of best fit (approximate): ___________________

b) Write the equation of your line: ___________________

c) Write the equation: ___________________