Lexi runs a race at school. She runs at a rate of 4 miles
per hour for the first mile, then increases her rate to 5
miles per hour until the last mile when she runs 6 miles
per hour. Which equation below represents her time, T, in
hours, if she runs a total of x miles?

T=6x is the answer. For equations you always start with y which in this case is t, then 6 for miles per hour and then x

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation: