Evaluate the frunction f(x)=2x-4,for f(-3)

the answer is  3

Step-by-step explanation:

This says to put " 3"  into 2x + 4 and then evaluate

So

2(3)  + 4  =

6 + 4  =

10

'x'  can be thought of as a "box" that contains some numberin this case, the number is 3!!!

-10

Step-by-step explanation:

f(x) = 2x - 4

f(-3) = 2(-3) - 4

f(-3) = -6 - 4

f(-3) = -10

x is variable or an unknown value to find

example:

2x = 5 which means x = 3