Answer:

Step-by-step explanation:
Given
The attached graph
Required
Determine the range of the graph
First, we list out the coordinate of each point on the graph:
The points are:

A function has the form: (x,y)
Where
y = range:
From the coordinate points above,

Order from least to greatest"

Hence, the range are: 
Answer: 200km
Step-by-step explanation:
200 mm and 200cm are too small.
Answer:
it is not always possible to find their intersection point for e.g take
y=x-1 it's inverse is y=x+1 so their is no intersection point but generally u find intersection points by equalizing their functions
f(x)=f^-1(x)
Answer:
5
Step-by-step explanation:
? x 2 = 10
/2 /2
? =5
M=230
m-80=150
add 80 to each sides