if point (4, 5) is on the graph of a function, which equation must be true?\no (f(5)=4)\no (f(5,4)=9)\no…

Answer:

C. $f(4)=5$

Explanation:

Step1: Recall function - point relationship

For a function $y = f(x)$, if a point $(a,b)$ lies on its graph, then when $x=a$, $y = f(a)=b$.

Step2: Identify $x$ and $y$ values

In the point $(4,5)$, $x = 4$ and $y = 5$.

Step3: Determine the correct equation

Substituting into $y = f(x)$, we get $f(4)=5$.