Answer:
Speed of car B is 33 km/h and speed of car A is 
Step-by-step explanation:
Let speed of car B be
km/h
Speed of car A is 12 km/h more than car B.
Therefore,
Speed of car A =
km/h
Distance = Speed × Time
Distance travelled by car A in 4 hours =
km =
km
Distance travelled by car B in 4 hours =
km
Also, cars A and B are 312km apart after 4 hours.

Speed of car B is 33 km/h and speed of car A is 
Answer:
y=-1x+-3
Step-by-step explanation:
y=mx+b
y=-1x+-3
Answer:
You travel 15 units of distance along the x-axis
Step-by-step explanation:
You want the distance from (0, 0) to (15, 5) in the x-axis. It is 15. If the question were the distance between the two points, you may use the distance formula or pythagorean theorem.
Answer:
Linear
Step-by-step explanation:
The trend is a straight line so linear
The trend is not parabola type so not quadratic
The general equation is
- y=mx+b
- The equation of line is y=3x-5