The graph below describes the journey of a bus between two stops. 81
a) Work out the
acceleration, in m/s2,
in the first 20 s.
6
Velocity (in m/s)
4
20
40
b) Work out the distance 2
between the two stops.
0
0
c) Work out the average
speed of the bus during
the journey
Give your answer to 1 d. p.
60 80 100 120 140 160 180
Time (t in seconds)

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5