1. A body moves with an initial velocity of 40/ and its accelerates uniformly until it attains a velocity of 80/. it then continues at that velocity for some time and then decelerates uniformly

to rest. The total time taken for the journey is 60 and the total distance travelled is 3200. If the

time spent accelerating is half of travelling at constant velocity, calculate the acceleration.
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answerthe vertex form

step-by-step explanation:

i would say true? if the unit was informational and it "refreshed your understanding", then true.

one way is to plot 2 points and connect them which is what the answer choices seem to be doing

it seems to be using the y intercept and the slope

y=mx+b, m=slope, b=y-intercept (where the line hits the y axis)

slope=rise/run

y-intercept is where the line croses the y axis which is the y value where x=0

you seem to have given the wrong slope (you didn't put a number in front of te x, it should be 2/3 or 3/2 looking at the answer options)

y=? x-1

m=? because of your fault

b=-1

so it has a slope of ? and y intercept of -1, meaning it pases through (0,-1)

so draw point (0,-1) (so answer is one of the first 2 option)

if slope is 2/3, then go up 2 and right 3 then draw line through those 2 points

if slope is 3/2, then go up 3 and right 2 then draw line through those 2 points