Question

What is the axis of symetry given f(x)=x^2+4x-19

Answer 1

x = -2 is the axis of symmetry.

Explanation:

We have given the function:

f(x)=x²+4x-19

We have to find the axis of symmetry.

We know that the formula for axis of symmetry is:

x = -b /2a

In this equation, b = 4 , a = 1

Putting these values we get,

x = -4/2(1)

x = -4/2

x = -2

x = -2 is the axis of symmetry of this function.

Answer 2

x = -2

Explanation:

The formula for the axis of symmetry is;

x = -b/2a

In this case;

b = 4 , a = 1

Therefore;

x = -4/2(1)

= -2

Thus; the axis of symmetry is x = -2