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# publicKhan/khan-exercises

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file 83 lines (72 sloc) 2.964 kb
 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 ` Parabola intuition 1
randRangeNonZero( -3, 3 ) randRangeNonZero( -5, 5 ) randRangeNonZero( -5, 5 )

Adjust the leading coefficient and vertex coordinates to make the blue parabola match the orange parabola.

How do these numbers affect the shape and position of a parabola?

graphInit({ range: 10, scale: 20, tickStep: 1, axisArrows: "<->" }); // Plot the orange parabola style({ stroke: "#FFA500", fill: "none", clipRect:[ [-10, -10], [20, 20] ], arrows: null }); plot( new Parabola( A, X1, Y1 ).graphieFunction, [-10, 10]); style({ stroke: "#6495ED", strokeWidth: 3, fill: "none", clipRect:[ [-10, -10], [20, 20] ], arrows: null }); graph.currParabola = new Parabola( 1, 0, 0 ); graph.currParabola.plot();

y - 0 = 1(x - 0)^{2}

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