SAT Math · Study & Practice

Desmos Calculator Mastery

The Digital SAT gives you a built-in Desmos graphing calculator on every Math question, and using it well can turn minutes of algebra into a few clicks. This is a hands-on guide. Every technique below is shown on Vidaara’s own graphing calculator — the same one in the dock at the top-right of this page — and most lessons embed a live calculator so you can try it as you read.

Topics

1 Interface Overview Get oriented: the expression list, the graph, the two tabs and the zoom controls. Start → 2 Graph Plotting Type an equation, read its key features, and let the picture replace the algebra. Start → 3 Tables & Evaluating Read a function at exact values without re-doing the arithmetic each time. Start → 4 Sliders Turn a letter into a dial you can drag, and watch the graph respond. Start → 5 Regression Tools Let the calculator find the line of best fit through a set of data points. Start → 6 Intersection Finding Solve equations and systems by graphing both sides and reading where they cross. Start → 7 Equation Solving Read the solutions of any equation straight off the x-axis. Start →

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