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## Algebra 1 (Eureka Math/EngageNY)

### Course: Algebra 1 (Eureka Math/EngageNY)>Unit 2

Lesson 12: Topic D: Lesson 14: Modeling relationships with a line

# Estimating equations of lines of best fit, and using them to make predictions

You might need: Calculator

## Problem

A panel of judges was asked to judge the quality of different kinds of potato chips. The relationship between their ratings and the price of the chips is shown in the scatter plot below. A line was fit to the data to model the relationship.
A scatterplot plots points x y axis. The y axis is labeled Rating. The x axis is labeled Cost per package in dollars. Points rise diagonally in a relatively narrow pattern between (80 hundredths, 1 half) and (2 and 8 tenths, 6). The line passes between the points (1, 2) and (2, 6). All values estimated.
Which of these linear equations best describes the given model?