QUESTION

[JackSparrow]

Find f(0) when f(x) = x^2 - 4x - 3.

Does anyone know where I can find this formula online? My worksheet doesnt show it. And I am so confused

 

[tkhunny]

The notation means SUBSTITUTE.

If f(x) = x^2 - 4x - 3, then f(0) = (0)^2 - 4(0) - 3 = -3

 

[JackSparrow]

I got 3

 

[Gene]

Close but look at again. Watch the signs.