If f(x) = x − 7, find the following.

a f(13)
b f(-6)
c f(p)

f ( x) = x − 7

Just replace x with the given values​​.

f ( 13 ) = 13 - 7 = 6

f ( 6 ) = 6 - 7 = 1

f ( p ) = 9 - 7

Correction:

f ( - 6 ) = - 6 - 7 = - 13

a ) f ( 13 ) = 13 - 7 = 6

a ) f ( - 6 ) = - 6 - 7 = - 13

c ) f ( p ) = p - 7

Thank you very much I see how this all works out. Thank you for the guide.

Have a wonderful day, and just wanted to say I appreciate everyone there that gives there time to help someone like me that just sometimes can not get it together.

To find a specific value of a function, you need to substitute the given value into the function and perform the appropriate calculations.

a) To find f(13), substitute 13 into the function:
f(13) = 13 - 7 = 6

Therefore, f(13) = 6.

b) To find f(-6), substitute -6 into the function:
f(-6) = -6 - 7 = -13

Therefore, f(-6) = -13.

c) To find f(p), substitute p into the function:
f(p) = p - 7

Therefore, f(p) = p - 7.