T, starts at 25 at midnight, when h=0. next few hours, the temperature drop 3 degrees ever hour, which equation represents the temperature, t at hour h

Here is the equation: t=-3h+25

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

the function makes a strait line horizontally with no x intercept but a y intercept at 9.