SOLUTION: How would you solve this problem? Given f(x)=x^2-4x+3 evaluate f(-1) This is how I worked the problem but I don't think I did something right. f(x)=x^2-4x+3 f(-1)=(-1)^2-

Algebra ->  Functions -> SOLUTION: How would you solve this problem? Given f(x)=x^2-4x+3 evaluate f(-1) This is how I worked the problem but I don't think I did something right. f(x)=x^2-4x+3 f(-1)=(-1)^2-      Log On


   

Question 110715: How would you solve this problem?
Given f(x)=x^2-4x+3 evaluate f(-1)
This is how I worked the problem but I don't think I did something right.
f(x)=x^2-4x+3
f(-1)=(-1)^2-4(-1)+3
=1-4(-1)+3
3+4+3
=10
answer:
(-1,10)
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
One little error set you off a bit.
:
f%28x%29=x%5E2-4x%2B3
f%28-1%29=%28-1%29%5E2-4%28-1%29%2B3
f%28-1%29=1-4%28-1%29%2B3
f%28-1%29=1%2B4%2B3=8: Here is where you moved a 3 down as the value of the first term instead of the 1 it should have been.
:
And then the correct ordered pair, (x,f(x)) would be (-1,8)
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