Question

If f(x) = 2x 2 - 3x + 1, find f(3) - f(2).

a) 0
b) 7
c) 17

Answer 1

is that question supposed to be f(x)=2x^2-3x+1 because if so that answer is 7

Answer 2

@ImonlyLeeLee, you can get this, why didn't you just replace your value of x with 3 and then replace your value of x with 2, and then subtract the results?

Answer 3

i did but my answers were like very off i dont understand pre cal and i just idk i think im not going to graduate because of this class

Answer 4

Don't think that way. My students are always thinking that, but I tell them they have to keep practicing, and the more you practice, the more familiar it will become. Supposed I had changed the problem to finding f(5)-f(2) could you have done it now that I explained to you what you should do?

Answer 5

I'll be around if you get stuck.