Final answer:
The equation of the line of best fit that Amber drew is b) y = 2x.
Step-by-step explanation:
The equation of the line of best fit that Amber drew is y = 2x.
To find the equation of the line of best fit, we need to determine the slope and y-intercept of the line. In this case, since the line is increasing, the slope is positive. Looking at the choices given, the only equation with a positive slope is y = 2x. Therefore, this is the equation of the line of best fit.
The equation y = 2x represents a linear relationship where the y-values are twice the corresponding x-values. For example, if x = 1, then y = 2(1) = 2.