Given the function f, described by f(x)=10x, find each of the following:
A) f(-5)
B) f(19)
C) f(26)
f(x)=10x then
f(-5) = 10(-5)
= -50
Notice I replaced x with -5 wherever I saw x.
Now follow that technique for the other two, and also for the other posting next to this one.
To find the value of a function at a specific input, we need to substitute the input into the function and evaluate the expression.
A) f(-5):
To find f(-5), substitute -5 into the function f(x) = 10x:
f(-5) = 10(-5)
= -50
Therefore, f(-5) equals -50.
B) f(19):
To find f(19), substitute 19 into the function f(x) = 10x:
f(19) = 10(19)
= 190
Therefore, f(19) equals 190.
C) f(26):
To find f(26), substitute 26 into the function f(x) = 10x:
f(26) = 10(26)
= 260
Therefore, f(26) equals 260.