Select a set of value of x in the range over which you wish to draw the graph. For each point, x, calculate x2+1 and then plot the point (x, x2+1) on a coordinate plane. Join these points with a smooth curve.
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104
2 squared plus 2 x 3 = 10, 7 squared plus 7 x 2 = 63, 6 squared plus 6 x 5 = 66,8 squared plus 8 x 4 = 96 so 9 squared plus 9 x 7 = 81 + 63 = 144.
It is the equation of a parabola.
1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2 = 1 + 1 + 1 + 1 + 1 + 1 = 5
y equals x plus 4 when y equals 0 then x equals 2i i is the square root of negative 1