The first term is 0. The fourth is 1000. The eighth term is 10,000,000. All you have to do is plug the term you want to find into n and then solve.
X+2x+3x+4x=9x. x is a variable that represents the number of points he won so far
Line B is traveling faster. I know this because Line B has a steeper line than line A.
He will earn $480 after 2 years
✿ Domain is the Set of Values of x
⇒ Domain = { 10 , 15 , 19 , 32 }
✿ Range is the Set of Values of y (Images of x)
⇒ Range = { -1 , 5 , 9 }
First Option is the Answer