Yes it is a function, it passes the straight line test
Answer:
10:40
Step-by-step explanation:
1+4=5
5=50
1=?
1×50÷5=10
5=50
4=?
4×50÷5=40
Answer =10:40
Step-by-step explanation:
- 4x2 - 80x - 400
- 4x2 - 40x - 40x - 400
-4x( x + 10) - 40(x + 10)
(x + 10) and ( - 4x - 40) are the factors