Skip to content

Scatterplots & Line of Best Fit — Core Skills

The core idea, one worked example, and short practice.

Written and reviewed by the Study Mondo Education TeamLast updated
🎯⭐ INTERACTIVE LESSON

Try the Interactive Version!

Learn step-by-step with practice exercises built right in.

Start Interactive Lesson →

Scatterplots & Line of Best Fit: The Basics

A scatterplot is a graph made of dots. Each dot is one thing that got measured twice, like a student's study hours and that same student's test score.

A line of best fit is a straight line drawn through the middle of the dots to show their general direction.

Read the dots from left to right. Rising dots mean a positive association: as x goes up, y goes up. Falling dots mean a negative association: as x goes up, y goes down.

The line comes with an equation like y = 2x + 5. The number in front of x is the slope, and it says how much y changes each time x goes up by 1. The number added at the end is the y-intercept, the predicted y when x is 0.

To predict, put the number in for x, multiply, then add.

Explain using:
← Previous Topic
Data & Statistics — Core Skills
Next Topic →
Probability & Two-Way Tables — Core Skills
🎴

Practice with Flashcards

Rate this topic's cards with spaced repetition. Cards join your deck when you finish a topic's lesson and take its exit quiz.

📖

Browse All Topics

Explore more SAT Prep topics

📌 Related Topics in SAT Core Skills Track

Vocab in Context — Core SkillsCentral Ideas & Details — Core SkillsCommand of Evidence — Core SkillsReading Comprehension — Core SkillsPunctuation — Core SkillsSentence Structure — Core Skills

❓ Frequently Asked Questions

What is Scatterplots & Line of Best Fit — Core Skills?▾
The core idea, one worked example, and short practice.
How can I study Scatterplots & Line of Best Fit — Core Skills effectively?▾
Start by reading the study notes and working through the examples on this page. Then use the flashcards to test your recall. Regular review and active practice are key to retention.
Is this Scatterplots & Line of Best Fit — Core Skills study guide free?▾
Yes — all study notes, flashcards, and practice problems for Scatterplots & Line of Best Fit — Core Skills on Study Mondo are free to access. No account is needed.
What course covers Scatterplots & Line of Best Fit — Core Skills?▾
Scatterplots & Line of Best Fit — Core Skills is part of the SAT Prep course on Study Mondo, specifically in the SAT Core Skills Track section. You can explore the full course for more related topics and practice resources.