The CollegeBoard took the entire "high school cinematic universe" by surprise when they decided to go all digital on the SAT at the end of 2023; hence the name DSAT. What seemed like just a modal change, resulted in something entirely new. Adaptive testing, harder and more abstract questions, granularly weighted scoring are some of the major things we have been able to figure out so far as test prep experts, and there is much more to decode. Based on the team's analysis so far, we have compiled a list of super useful scenarios where DESMOS could be your ultimate friend on DSAT Math!
There are certain topics and question types that you should look out for and mark to do using DESMOS. Questions involving linear/non linear equations, functions, systems of equations are a sure shot pick for DESMOS. Questions asking you to form equations/inequalities to represent given scenarios and questions asking for the direct application of a formula can be great candidates for DESMOS. Let's look at each category one by one.
Linear Equations and Systems of equations:
Most questions involving linear equations would either directly be focused on finding slope, points of intersection and such or contain a word problem that eventually requires you to solve the equations. Look at the below questions for instance. A very important DESMOS skill that is needed for these questions and many more is 'Regression'. You use regression when you are given coordinates but not the equation for the function. To get the equation from the function, you use Regression on DESMOS. Here is a detailed video on how to use Regression on DESMOS.


*Pay close attention to the adjustments done on the scales (x and y)
If you need some DESMOS practice worksheets, I am attaching two great ones here:
Linear and Non Linear Inequalities:
Similar to equations, the inequality based questions on DSAT Math can also have multiple forms; namely one where you solve the given inequalities directly and the other where the question is worded with constraints that need to be written into inequalities first and then solved with DESMOS. Look at the below question for reference.

Watch this detailed video on how to solve DSAT Math questions with regressions, sliders, equation input on DESMOS
Quadratic and Exponential functions with DESMOS - critical for SAT Math*:
Quadratic and exponential functions often make an unsettling appearance on the DSAT Math paper with complex worded constraints, growth-decay scenarios, information on vertex, maximum, minimum and more. Similar to the linear equations, Regression is also used for Quadratic and Exponential functions on DESMOS. So in case you didn't want to watch the Regression video when I previously mentioned, please do so now, it's really important!!
Look at the below questions for reference.

*Pay close attention to the adjustments done on the scales (x and y)

       DESMOS solution for above
So you see how DESMOS makes some of the tough questions from algebra and advance math really easy to solve. The same can also be extended for some of the Geometry and Trigonometry questions. We will look at solving Geometry and Trigonometry questions on the DSAT Math with DESMOS in the next issue of the EduretiX blog. Subscribe and stay tuned for the best SAT prep resources.
*SAT, Digital SAT are registered trademarks owned by the College Board, and EduretiX is not related to the College Board in any way or holds any ownership on the trademarks.
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