作函数图像：

y=x(x+1)
y=xsinx

作函数图像：

y=(x+1/x-1)^3

作函数图像：

y=0.02(1600x+16sqrt17+400sqrt17(1-x)+34)-24.5/(587.5sqrt17)
y=0.68/sqrt17(400x+4sqrt17)+0.68(400(1-x)+2sqrt17)-6/587.5(400x-(6sqrt17-1)+24)

作函数图像：

y=(94sqrt17(400x+4sqrt17)+773.5(400(1-x)+2sqrt17)+400x(6sqrt17-1)+24)/(-587.5sqrt17)
y=0.02(1600x+16sqrt17+400sqrt17(1-x)+34)-24.5/(587.5sqrt17)

作函数图像：

y=(94sqrt17(400x+4sqrt17)+773.5(400(1-x)+2sqrt17)+400x(6sqrt17-1)+24)/(-587.5sqrt17)