Lesson 2 Homework Practice Lines Of Best Fit May 2026

a) Is the correlation positive or negative? ___________________

b) Use two points from your line of best fit to find the slope. Show your work.

e) Is it reasonable to use this line to predict sales at ? Why or why not? 5. Challenge – Interpret the Line A student drew a line of best fit for a scatter plot with the equation: [ y = -2.5x + 45 ] lesson 2 homework practice lines of best fit

a) Correlation: ___________________

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). a) Is the correlation positive or negative

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

(If no grid is available, describe where your line passes through two approximate points.) An ice cream shop records daily high temperature (°F) and ice cream sales ($). e) Is it reasonable to use this line to predict sales at

a) Correlation: ___________________