Answer:
Part 1)
part 2)
Step-by-step explanation:
Part 1)
we know that
The area of a trapezoid is equal to
In this problem we have
----> perpendicular distance between the two bases
substitute
Part 2)
we know that
The area of a kite is equal to
we have
substitute
3/4 x 21
=
3/4 x 21/1
=
63/4
I think it’s A but correct me if I’m wrong
You plug in 4 for x
Which would be
(-4)^2-(-4)
-4×-4=16
16-(-4)
16+4=20
f(-4)=20