Which statement about the graph of line y = x + 1/2 will be true if the 1/2
is replaced by -2?

A. The line will be rotated 90°.
B. The line will be reflected across the x-axis.
C. Both the slope and the y-intercept will decrease.
D. The y-intercept will decrease, but the slope will not be changed.
E. The slope will decrease, but the y-intercept will not be changed.

Every time you drive you will experience a combination of driving conditions and environments.

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.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6