3. Determine whether the data show a linear relationship by plotting the points and drawing the line. If so, write an equation of a line of fit. Estimate y when x = 15 and explain its meaning in context.
Months,
2 6 12 16 20
Hair length,
7.2 13.1 22.3 29.5 36
no
b. yes: y = 4x+1.6: y =61.6: After 15 months, the hair length will be 61.6 inches.
c. yes: y=-1.6x +4: y = 28: After 15 months, the hair length will be 28 inches.
d. yes: y = 1.67 +4; y = 28: After 15 months, the hair length will be 28 inches