📐 Math Grades 7–12

Graphing Calculator

Type a function of x, like y = 2x + 1 or x^2 - 4, and see its graph. Drag to move, pinch or use the buttons to zoom, and tap the graph to trace a point.

Learn How it works

Lines y = mx + b: m is the slope (rise over run) and b is where the line crosses the y-axis.
Parabolas y = a(x − h)^2 + k: the vertex is (h, k). If a > 0 it opens up.
Zeros (x-intercepts) are where the graph crosses the x-axis, where y = 0.
Intersections of two graphs are the solutions to a system of equations.

Examples See it done

Try these (tap to load):

Try it Graph

Trig in radians

Tap the graph to trace

Table of values

Practice Check yourself

Answer, then tap Check. You get an explanation either way.

Graph y = 2x + 1 and y = −x + 4. At what x do they intersect?
What are the zeros of y = x² − 4? (type both, like: -2, 2)
What is the vertex of y = (x − 2)² + 1? (−2, 1) (2, 1) (1, 2)