Written the way the book writes it
2x², 3(x + 1), sin 2x and √x all work as printed. Multiplication can be left out, −x² means −(x²), and sin(x)² means (sin x)². Trigonometry is in radians, because that is what a graph of sin x is drawn in.
Graph Plotter 📈
Type a function of x and see its graph. Plot up to four at once, drag to move around, pinch or scroll to zoom, and the roots, turning points and intersections are found and listed for you.
Up to four functions
Roots & turning points
Pinch, drag, scroll
Nothing leaves your device
Functions
Try one
What can I type?
2x,3(x+1),(x−1)(x+2)— multiplication can be left outx^2,x²,x^(1/3)— powers and rootssqrt(x),√x,|x|,abs(x)sin x,cos,tan,asin… — in radiansln x,log x(base 10),e^x,pi,π
Points on the graph
How the plotter works
Points found in the window you see
Roots, minimums, maximums and intersections are searched across the part of the graph on screen and refined to many decimal places. Move or zoom and the list follows — a function like sin x has endless roots, so only the visible ones are listed.
Asymptotes are left open
For 1/x or tan x the curve jumps from one side of the screen to the other. The plotter breaks the line there instead of drawing a false vertical stroke, and it does not report a jump across an asymptote as a root.
Nothing leaves your device
Everything is drawn in your browser. Nothing is sent or saved. The address bar holds your functions and the view, so you can bookmark a graph or send the link to a classmate.
Understanding a graph matters more than drawing it.
Our tutors take Grade 12 students through limits, derivatives and the full study of a function — variation tables, asymptotes and sketching by hand — at home or online.