Question

F(t) = -2t + 5 f() = 13

Answer 1

For this case we have a function of the form
`y = f (t),` where:

`f (t) = - 2t + 5`

We want to know the value of t for which the function is y = 13.

So:

`f (t) = - 2t + 5 = 13\\-2t + 5 = 13`

We subtract 5 on both sides of the equation:

`-2t = 13-5\\-2t = 8`

We divide between -2 on both sides of the equation:

`t = -4`

Thus, the value of t is -4

Answer:

`t = -4`