Answer:
=
= 
Step-by-step explanation:
triangle ADE and triangle ABC are similar
therefore, the ratio of their corresponding sides are equal
Answer - natural
A sequence is a function whose domain is the set of natural numbers.
Answer: -101
Step-by-step explanation: f(n) = 19-6*n
f(20) = 19 - 6*20
f(20) = -101
If x=2, the line is just a straight, vertical line intersecting the x-axis at 2.