23) A doctor collected data to determine the association between age of an infant and its weight. She modeled the equation y = 1.25x
+ 7 for the line of best fit. The independent variable, x, is time in months and the dependent variable, y, is weight in pounds. What
does the slope mean in this context?
A)
An infant's starting weight is 7 pounds.
B)
An infant's starting weight is 1.25 pounds.
0)
An infant's weight increases by an additional 7 pounds for each month.
D)
An infant's weight increases by an additional 1.25 pounds for each month.