Im bord, pls help me not get bord

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

What term makes it inconsistent y=2x - 4

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)