Question

If f(x)=10x-1, the value of f(-2) is?

Answer 1

-21

Explanation:

to solve this problem,

replaced the variable x with -2

f(-2) = 10(-2) - 1

multiply 10 and -2

-20 -1

add the value of -1 and - 20

rules of integers

-21

the answer is

f( -2) = -21