The graph below shows Lisa's distance from her home (y), in miles, after a certain amount of time (x), in minutes:

Graph titled Lisas Distance Vs Time shows 0 to 10 on x and y axes at increments of 1. The label on x axis is time in minutes and that on y axis is Distance from Home in miles. Lines are joined at the ordered pairs 0, 0 and 1, 0.5 and 1.5, 1 and 2, 2 and 3, 2 and 4, 2 and 5, 3 and 6, 4 and 7, 5 and 8, 6.

Four students described Lisa's motion, as shown in the table below:

Student Description
Greg She drives at a variable speed for 2 minutes, then stops at a crossing for 2 minutes, and finally drives at a constant speed for the next 4 minutes.
Sam She drives at a variable speed for 2 minutes, then stops at a crossing for 4 minutes, and finally drives at a constant speed for the next 8 minutes.
Jane She drives at a variable speed for 2 minutes, then drives at a constant speed for the next 2 minutes, and finally drives at a variable speed for the next 4 minutes.
Pam She drives at a variable speed for 2 minutes, then drives at a constant speed for 4 minutes, and finally drives at a variable speed for the next 8 minutes.

Which student most accurately described Lisa's motion?
Greg
Sam
Jane
Pam

A horizontal line on a distance-time graph shows that the object is stationary (not moving because the distance does not change) A sloping line on a distance-time graph shows that the object is moving.

According to the question

Graph titled Lisa's Distance Vs Time shows 0 to 10 on x and y axes at increments of 1.

Lines are joined at the ordered pairs

(0, 0 )

( 1, 0.5 )

(1.5, 1)

(2, 2 )

( 3, 2)

( 4, 2)

(5, 3)

( 6, 4)

( 7, 5)

( 8, 6)

now , As per distance time graph points

(0, 0 ) to (2, 2 ) .shows She drives at a variable speed for 2 minutes,

(2, 2 ) to ( 4, 2) shows then stops at a crossing for 2 minutes, (horizontal line)

( 4, 2) to ( 8, 6) finally drives at a constant speed for the next 4 minutes.(straight line shows uniform motion)

Hence, Greg shows the correct description of Lisa's distance vs time graph .

To know more about distance time graph here:

https://brainly.com/question/19836052

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