Question

QUICK!!

The x-intercepts of a quadratic function are −3 and 5. What is the equation of its axis of symmetry?

A. x=-3
B. x=1
C. x=5
D. x=-15

Answer 1

B x=1

Explanation:

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Answer 2

B. x=1

Explanation:

Let us define axis of symmetry first.

The point right in between the two x-intercepts of a quadratic equation is called axis of symmetry.

We have x-intercepts of -3 and 5

In ordered to find the axis of symmetry we have to find their middle intercept

To find the axis of symmetry:

`= (-3+5)/(2)\\=(2)/(2)\\ =1`

So the axis of symmetry is x = 1 ..