A parabola can be drawn given a focus of (-8, 8) and a directrix of x=0. What can be said about the parabola?

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.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?