Answer:
This mapping diagram is not a function.
Step-by-step explanation:
The coordinates are:
(3,7), (6,5), (6,10), (12,9), (18,10)
As you could see, (6,5), (6,10) have the same x attached to a y.
This is not a function.
In a function, every x value corresponds with only one y value. In this relationship, the 6 corresponds with both 5 and 10, which is impossible in a function. Thus, it isn't a function.
23.m∠2=x+60
as the sides are equal.
so angles are also equal.
m∠2=45
x+60=45
x=45-60=-15°
so C
24.
74+74+m∠2=180
m∠2=180-148=32°
so 3x-4=32
3x=32+4=36
x=12°
C
25.
as the three sides are equal so angle are equal.
m∠2=60
7x-10=60
7x=60+10=70
x=10
D
In my opinion the new coordinates are
A' (-3, -5)
15 divided by 5
P=15
3*5=15
