Question: I need help with this problem. I have it on a scatter plot but I don't know how to find the equation for the model

I need help with this problem. I have it on a scatter plot but I don't know how to find the equation for the model of best fit, once I have the equation I can answer question b. I just need guided steps and the equation please

a) Find the model of best fit.

b) Predict the total cholesterol of a 45-year-old male.

^{Age (Years) (x) / Total Cholestoral (y)}

^{-------------------}

^{27 / 193}

^{40 / 200}

^{50 / 205}

^{60 / 205}

^{70 / 201}

^{80 / 195}

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