There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ -1.16xy + 220x - 0.19y - 114.51\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -1.16yx + 220x - 0.19y - 114.51\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( -1.16yx + 220x - 0.19y - 114.51\right)}{dx}\\=&-1.16y + 220 + 0 + 0\\=&-1.16y + 220\\ \end{split}\end{equation} \]

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