Find the slope of the line through points 8,2 and -1,-4

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Pls! does anybody know a shortcut for answering these types of questions in the future?

Your client has saved $1,860 for a down payment on a house. a government loan program requires a down payment equal to 3% of the loan amount. what is the largest loan amount that your client could receive with this program