Question

Just a question about the problem, dont need the answer if you dont want to solve it, but would 15 be negative? Thats all, Thanks!
$f(x)=x^{2} +15x+3$

Answer 1

Answer:

$x = -\frac{15}{2}$

Step-by-step explanation:

Hello!

The formula for the AOS is given to you, and you simply have to plug in the information given by the equation.

Equation of a Parabola (Standard): $y = ax^2 + bx + c$

Comparing it to our equation:

• a = 1
• b = 15
• c = 3

Plug it in to the AOS formula:

• $x = \frac{-b}{2a}$
• $x = \frac{-15}{2(1)}$
• $x = -\frac{15}{2}$

You only have to input 15 in to the correct box since the negative sign is already placed for you.