Question

F(2)=7×-9/×-5

`f(2) = (7x - 9)/(x - 5)`

Answer 1

Hi there!

• f(x) =
`\frac {7x - 9}{x - 5}`

• Then,
To find th' value of f(2). Substitute " 2 " in place of " x "

f(2) =
`\frac {7 × 2 - 9}{2 - 5}`

f(2) =
`\frac {14 - 9}{-3}`

f(2) =
`\frac {5}{-3}`

f(2) = -
`\frac {5}{3}`

Hence, f(2) = -
`\frac {5}{3}`

~ Hope it helps!

Answer 2

We presume you intend

`f(x)=(7x-9)/(x-5)`
and you want to evaluate f(2).

Put 2 where x is, everywhere.

`f(2)=(7\cdot 2-9)/(2-5)=(5)/(-3)=-(5)/(3)`