Yes you are correct. You take half of the x coefficient 18 to get 9, then you square 9 to get 81
x^2+18x+81 is a perfect square trinomial which factors to (x+9)^2
9.0675 x 10^3 (The exponent is positive. )
Answer:
False
Step-by-step explanation:
Residuals are the measure of the error in the fit. The square of their sum gives no weight to the sign of the error, but gives greater weight to larger errors. The fit will be better when the error is <em>smaller</em>. In this scenario, Line B is a better fit.
The statement that Line A better fits the data is FALSE.
I believe it means to multiply. hope that helped
