the graph shows the average length of a newborn baby, where x represents its age in months and y represents…

the graph shows the average length of a newborn baby, where x represents its age in months and y represents its length in inches. a line of best fit with equation y = 1.5x + 20 is also shown. according to the line of best fit, which statements are correct? select all that apply. a the average length of a newborn baby at birth is 1.5 inches. b the average length of a newborn baby at birth is 20 inches. c for every week since birth, on average a newborn baby grows by 1.5 inches. d for every week since birth, on average a newborn baby grows by 20 inches. e for every month since birth, on average a newborn baby grows by 1.5 inches. f for every month since birth, on average a newborn baby grows by 20 inches.
Answer
Explanation:
Step1: Analyze the y - intercept
The equation of the line is (y = 1.5x+20). In the slope - intercept form (y=mx + b) (where (m) is the slope and (b) is the y - intercept), when (x = 0) (at birth, since (x) represents age in months), (y=1.5\times0 + 20=20). So the average length at birth is 20 inches.
Step2: Analyze the slope
The slope (m = 1.5). Since (x) represents age in months, for each increase of (x) by 1 (i.e., each month), (y) (length) increases by (m = 1.5). That is, for every month since birth, on average a newborn baby grows by 1.5 inches.
Answer:
B. The average length of a newborn baby at birth is 20 inches; E. For every month since birth, on average a newborn baby grows by 1.5 inches.