Question 8 (1 point) Many local water companies encourage their customers to use devices that limit water use to help reduce their water bills. The scatterplot
and least-squares regression line display the relationship between the number of water conservation devices and monthly water bills for a
random selection of 9 homes that receive their water from a local water company. The equation of the least-squares regression line is
9-36.884-4.386x. Interpret the slope and y intercept of the regression line.
Oa
Ob
Ос
The predicted monthly water bill decreases $36.884 for each additional water conservation device installed. When there are no
water conservation devices, the predicted monthly water bill is-$4.386.
The monthly water bill decreases $4.386 for each additional water conservation device installed. When there are no water
conservation devices, the monthly water bill is $36.884.
The predicted monthly water bill decreases $4.386 for each additional water conservation device installed. When there are no
water conservation devices, the predicted monthly water bill is $36.884.
The predicted monthly water bill increases $36.884 for each additional water conservation device installed. When there are no
water conservation devices, the predicted monthly water billis -$4.386.
Od