The equation of the line that goes through the points (4,9) and (8,6) can be written in the
form y = mx + b where m is:
and b is:

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Math each whole number with a rational,exponential expression

20 points + brainliest answer + my mom’s chocolate chip cookie ! subtract.