How do you evaluate the function $f (x) = \frac{3}{5} x + 4$ $f(x)=3/5x+4$ for $f (5))$ $f(5))$ ?

Question

2011 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-04-06T00:13:18

$7$ $7$

$f (5)$ $f(5)$ just means $x = 5$ $x=5$ . So wherever we see an $x$ $x$ , replace it with a $5$ $5$ . Doing this, we get:

$f (5) = \frac{3}{5} (5) + 4$ $f(5)=3/5(5)+4$

$f(5)=3/cancel5cancel(5)+4$

The 5s cancel out, and we're left with

$3+4$ , which is obviously $7$ .

Hope this helps!

How do you evaluate the function f(x)=3/5x+4f(x)=35x+4f(x)=3/5x+4 for f(5))f(5))f(5))?