Sketch a graph of the speed of a city bus on a daily route. Label each section. A - bus pulls away from a stop and increases speed
B - bus is at a constant speed between stops
C - bus is stopped
D - bus increases speed after stopping

step-by-step explanation:

a and c

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.