Need help on writing an equation. the question is let H represent the stack height. Write an equation that represents the height of a stack of medium lampshades in terms of the number of lampshades, s, in the stack.

Question

# of lamp shades stack height med
1 8
2 10.5
3 13
4 15.5
5 18

Thanks...

Answer 1

note that H increases by 2.5 for each shade. So, since H starts at 8 when s=1,

H(s) = 5.5 + 2.5s