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show me what you have so far
Look at the graph for car 1. Where does it cross the x axis?
the point (70,0)
what this means is that when x = 70, y = 0 x = time y = distance when the time is 70 minutes, the distance is 0 (ie you get to the destination)
that's what the x intercept means for car 1
notice in the table for car 1 how x = 70 and y = 0 pair up (first two rows, last column)
look at the graph of car 2. Where does the curve cross the y axis? you can also look at the table for car 2 and look for the y value when x = 0
yes so this is basically saying that at the beginning time (time t=0 minutes), the distance away from home is 70 km
the distance car 2 is away from the destination is 70 km
give it a shot and tell me what you think
x is involved somehow
I think you meant to say \[\Large 0 \le x \le 70\] ???
try another browser?
what about the equation?
the domain of car 1 is |dw:1444424463898:dw|
since x spans from 0 to 70 for car 1
for car 2, what would the domain be?
look at the car 2 curve do you see how it goes past x = 70 ?
x is greater than or equal to 0, but I don't see where the graph of car 2 stops. This is definitely one of those questions where not enough info is given
Same here. I would ask your teacher about it