SOMEONE HELP PLEASE ASAP ITS TIMED A boy is slowly pushing a box across the floor. In which direction is friction occurring?
a. away from the boy
b. toward the boy
c. up
d. down

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.

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That depends on what kind of environ meant it is in  in space it has the same force that was applied when the velocity was gained