Graph the line that represents a proportional relationship between yyy and xxx where the unit rate of change of yyy with respect to xxx is \,\dfrac{4}{5} 5 4 start fraction, 4, divided by, 5, end fraction . In other words, a change of 111 unit in xxx corresponds to a change of \,\dfrac{4}{5} 5 4 start fraction, 4, divided by, 5, end fraction units in yyy. Graph the line and write the equation of the line.

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?