50.0k views
0 votes
Find the equation of the axis of symmetry for this function. f(x) = x2 + 15x + 3 x=-b/2a

1 Answer

4 votes

Answer:

-7.5

Step-by-step explanation:

The standard form of a quadratic eqaution is expressed as;

f(x) = ax^2+bx+c

Given the quadratic equation f(x) = x^2 + 15x + 3

on comparison;

a = 1, b = 15 and c = 3

The equation of the axis of symmetry for this function is expressed as;

x = -b/2a

Substitute the given values

x = -15/2(1)

x = -15/2

x = -7.5

Hence the equation of the axis of symmetry for this function is 7.5



User JohnColvin
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories