Free SAT Practice Question

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ID: SAT-MATH-PSDA-029
Section: SAT Math - Problem Solving & Data Analysis (PS&DA)
Topic: Two-variable data: models and scatterplots
Difficulty level: Medium

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A botanist recorded, for a group of sunflower seedlings, the number of days since planting, \(x\), and each seedling's height, \(y\), in centimeters. The line of best fit for the data is \(y = 1.8x + 6\). Which of the following is the best interpretation of the slope of the line of best fit?

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