Final answer:
The best predicted value of y for x = 5 is 27.
Step-by-step explanation:
A regression equation is a mathematical model that represents the relationship between a dependent variable and one or more independent variables. It expresses the linear or nonlinear association between these variables and is derived from statistical methods like linear regression analysis.
To predict the value of y for x = 5 using the regression equation, you can substitute x = 5 into the equation y = 5x + 2:
y = 5(5) + 2 = 27
Therefore, the predicted value of y for x = 5 is 27.