If f(x) = -3x + 8, find f(5)
A. -7
B. -5
C. 5
D. 7
To find f(5), you simply need to substitute x = 5 into the expression for f(x) and evaluate it.
Given f(x) = -3x + 8, substitute x = 5:
f(5) = -3(5) + 8
Now, multiply -3 by 5:
f(5) = -15 + 8
Next, subtract 15 from 8:
f(5) = -7
Therefore, f(5) is equal to -7.