Let s = northbound train
Then
2s = southbound train
:
Distance = time * speed
4s + 4(2s) = 600
:
4s + 8s = 600
:
12s = 600
:
s = 600/12
:
s = 50 mph is the northbound train
Then
2(50) = 100 mph is the southbound train
:
:
Check:
4(50) + 4(100) = 600
Answer:
7290
Step-by-step explanation:
The answer is -2
Hope this helps!
True
Y=-2x-3
Y=-x-2 (rearranged for y intercept form)
Insert -1,-1 into both
-1= -2(-1) -3
-1=-1
Y=-x-2
-1=-1(-1) -2
-1=-1
Both equal