Article series
Desmos on the Digital SAT
9 parts, best read in order — each one builds on the last.
How to Graph Lines on Desmos (Slope & Intercept in Seconds)
Type y = mx + b into the built-in Digital SAT Desmos calculator and read the slope and intercept straight off the graph. Part 1 of the Desmos series.
Solve SAT Systems in Seconds: The Desmos Intersection Method
Graph two lines in the Digital SAT's built-in Desmos and the point where they cross solves the whole system — x and y at once. Part 2 of the series.
Graphing Circle Equations on Desmos (Center & Radius)
Type any SAT circle equation into Bluebook's Desmos and read the center and radius straight off the graph — origin, shifted, and expanded forms.
Parabolas on Desmos: Vertex, Roots, and Intercepts
Learn how to find the vertex on Desmos, plus roots and intercepts, by graphing a parabola in Bluebook's built-in calculator and mapping each point to real Digital SAT question wording.
Solve Any SAT Equation Graphically with Desmos
Turn every "solve for x" into "where do they cross?" — graph both sides in the SAT's built-in Desmos and read the answer straight off the screen.
Graphing Inequalities & Shaded Regions on Desmos
Type an inequality into the Digital SAT's built-in Desmos and it shades the answer region — then plot the choices to find the point in the overlap.
SAT Statistics & Regression on Desmos (Straight From a Table)
Enter SAT data as a Desmos table, then compute mean, median, and a line of best fit like y = 1.3x - 0.3 to predict values and read the rate of change.
Desmos Sliders: Cracking 'Find the Value of k' Problems
Master Desmos sliders on the Digital SAT: type a letter, drag until the graph fits, and crack "find the value of k" questions fast.
Desmos Tips, Shortcuts, and When NOT to Use It
Every Desmos SAT shortcut worth memorizing — click any point for exact coordinates, keep fractions exact, use tables — and the three times to skip it.