the equation for the line of best fit for a data set is y = 2x + 1.5. if the point (1, 4) is in the data…
the equation for the line of best fit for a data set is y = 2x + 1.5. if the point (1, 4) is in the data set, what is the residual of 1?\n0 0.5\n0 3.5\n0 4.0\n0 7.5
Answer
Answer:
A. 0.5
Explanation:
Step1: Calculate predicted value
Substitute $x = 1$ into $y = 2x+1.5$. So $y_{predicted}=2\times1 + 1.5=3.5$.
Step2: Calculate residual
Residual = $y_{actual}-y_{predicted}$. Given $y_{actual}=4$, then residual = $4 - 3.5=0.5$.