116k views
1 vote
Write the quadratic function f(x) = x2 + 8x + 3 in vertex form.

A) f(x) = (x - 4)2 - 13
B) f(x) = (x - 4)2 + 3
C) f(x) = (x + 4)2 + 3
D) f(x) = (x + 4)2 - 13

User Kodin
by
7.7k points

2 Answers

1 vote

Answer:

D) f(x)=(x+4)2-13

Explanation:

The vertex has an x-coordinate at x = -4 and y-coordinate at f(-4) = -13. The answer is f(x) = (x + 4)2 - 13.

User Carbine
by
7.7k points
5 votes

Answer:

D) f(x) = (x + 4)^2 - 13



User Sahin Erbay
by
7.4k points