This tactile graph shows y = 0.5x^2 - 2x + 3, for x from -0.5 to 4.5.
Hold the plate with the raised triangle at the top-left.
The lowest point (vertex) is at x = 2, y = 1.
The curve crosses the y-axis at y = 3.
Each marked point has a braille letter next to it: a, the vertex; b, the y-intercept.
The braille number in the top-right corner, 6, is this graph's ID.
Note: automated checks measure spacing and size; they do not certify that a learner can understand the graphic.