# data[].attributes.headline
Which trains move with positive velocity ?

# data[].attributes.subject
Which trains move with positive velocity ?

# data[].attributes.headline
1. (a) The magnitude of the slope of segment D is the largestof the four, and the slope of segment C is the smallest, so we arrive atthe ranking: speed C < speed B < speed A < speed D. 

# data[].attributes.subject
1. (a) The magnitude of the slope of segment D is the largestof the four, and the slope of segment C is the smallest, so we arrive atthe ranking: speed C < speed B < speed A < speed D. 

# data[].attributes.headline
(b) Slopes D and C are negative, with slope D having the largest magnitude. Slope A also has a larger magnitude than B. We arrive at theranking for velocity, from most negative to most positive:velocity D < velocity C < velocity B < velocity A

# data[].attributes.subject
(b) Slopes D and C are negative, with slope D having the largest magnitude. Slope A also has a larger magnitude than B. We arrive at theranking for velocity, from most negative to most positive:velocity D < velocity C < velocity B < velocity A

# data[].attributes.body
Group A has a positive velocity / slope because both lines are going from left to right

# data[].attributes.body
Graph A. Has two positive
Graph B. Has one positive and one negative
Graph C. Has one positive and one negative

# data[].attributes.body
In group A is train 1 and 2
In group B train 2
In group C train 1

# data[].attributes.body
A) both
B) train 1 is - and train 2 is +
C) train 1 is + and train 2 is -

# data[].attributes.body
Graph A because there both increasing (going up)
Graph B one going down and the second up
Graph C one going up and the second down

# data[].attributes.body
Graph A all positive
Graph B train 1negative train 2pisitve
Graph c train 1 positive train 2negative

# data[].attributes.body
Graph A has both train 1 and 2 in positive velocity
Graph B has  train 1 negative velocity and 2 positive velocity
Graph C has train 1 has positive and train 2 negative velocity

# data[].attributes.body
Graph A: both
Graph B: train 2
Graph C: train 1

# data[].attributes.headline
1. Find its initial position, 𝑥𝑖 at 𝑡 = 0. 2. Find its average velocity. 3. Write an equation for its final position, 𝑥𝑓, as a function of time. substitute all theknown values. 4. Which object A or B has a greater velocity? Explain your answer.

# data[].attributes.subject
1. Find its initial position, 𝑥𝑖 at 𝑡 = 0. 2. Find its average velocity. 3. Write an equation for its final position, 𝑥𝑓, as a function of time. substitute all theknown values. 4. Which object A or B has a greater velocity? Explain your answer.