f(x)=10-4x
what is the value of f(-2)
To find the value of f(-2), we substitute -2 into the equation for x:
f(x) = 10 - 4x
f(-2) = 10 - 4(-2)
Simplifying the expression inside the parentheses:
f(-2) = 10 + 8
Combining like terms, we have:
f(-2) = 18
Therefore, the value of f(-2) is 18.