Okay I need help:
F(x)=x^2-5 find f(3)
2 answers:
Answer:
f(3)=4
Step-by-step explanation:
f(x)=x^2-5
f(3)=3^2-5
f(3)=3*3-5
f(3)=9-5
f(3)=4
f(x) = x^2 -5
Find f(3)
This means find x when it is 3 so just substitute 3 for x
f(3) = 3^2 -5
= 9 - 5
f(3) = 4
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