📈 Step-by-Step Guide to Using Desmos in the SAT Math Section
Table of Contents
The Digital SAT now allows students to use the built-in Desmos graphing calculator in both math modules. With the right techniques, Desmos can help you score an 800 in SAT Math. Here's everything you need to know to use Desmos like a pro.
🚀 Why Use Desmos on the Digital SAT?
- Available in both calculator-allowed modules.
- Helps visualize functions, solve equations, and find intersections.
- Saves time and reduces algebraic errors.
🔧 Core Desmos Tools for SAT Math
- Graphing: Plot lines, parabolas, and more.
- Table Mode: Enter x-values and observe outputs.
- Intersection Finder: Tap on intersection points to solve systems.
- Slider Tool: Helps analyze dynamic variables.
🧠 Step-by-Step Examples & Tricks
📍 Example 1: Solving a System of Equations
Plot both equations on Desmos:
y = 2x + 3
y = -x + 9
Click the intersection point: (2, 7) — that’s your solution!
Source: SAT Verse @2025 📍 Example 2: Finding Zeros of Quadratic
y = x² - 5x + 6
Click on x-intercepts (zeros): x = 2 and x = 3.
Source: SAT Verse @2025
✅ 10 Desmos Tricks to Score 800
- Use Desmos for quadratic factoring.
- Check vertex & axis of symmetry.
- Use sliders to understand variable change.
- Graph all options to see which one fits!
- For geometry questions, plot figures using coordinates.
- Use zoom-in/out when necessary.
- Use tables for sequences.
- Use
abs(x)for absolute value problems. - Use
x % 2for remainder patterns. - Label your points!
📝 Practice SAT Math Questions Using Desmos
👉 Download Official SAT Math Practice Questions with Desmos
📺 Video: Desmos on the Digital SAT
❓ FAQ - Desmos on SAT
Q: Can I use Desmos for all questions?
A: Desmos is available only during calculator-allowed module, but you can use it for many question types including word problems and geometry.
Q: How do I Choose a Digital SAT Calculator?
A: You can either use the Desmos graphing calculator built into the test delivery platform or bring your own approved device.
Ensure your device is on the College Board’s list of approved calculators.
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