Consider the two lines describer the equations Ax + By = C and Dx + Ey = F a) What must be true for these two lines to parallel?

b) What must be true in order for these two lines to be perpendicular?

c) What must be true in order for these two lines to be identical?

What is the value of x in the diagram below?

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?