If point (4, 5) is on the graph of a function, which equation must be true? f(5)=4 f(5,4)=9 f(4)=5 f(5,4)=1

True:  f(4)=5

C is correct.

Step-by-step explanation:

If point (4, 5) is on the graph of a function.

Point on graph means this satisfies the graph or function.

Point (4,5) is on graph of function.

If we put x=4 then we get y=5

Because x is input value and y is output value of a function.

As we know, y=f(x)

Put x=4 and y=5

We get,

f(4) = 5

Hence, The equation must be true f(4)=5

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

d

step-by-step explanation: