The graph below describes the journey of a train between two cities. 120
a) Work out the
acceleration, in km/h?,
in the first 15 mins.
100
80
Work out the distance
between the two cities. 60
Velocity (in km/h)
40
Work out the average
speed of the train during 20
the journey
0
9am
11am
10am
Time

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

X-10/4 when x = –18 a 7 b –2 c –7 d 2

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?