f of x = the square root of 2x minus 5
Find f(7)
A. 2
B. 3
C. -5
D. 7
A
per previous explanation, what do you think?
To find f(7), you need to substitute 7 into the given function f(x) = √(2x - 5).
Replacing x with 7, we have:
f(7) = √(2 * 7 - 5)
= √(14 - 5)
= √9
= 3
So, the answer is B. 3.