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

Question

asked Oct 19, 2020 42.7k views

2 Answers

AdamC · Answer 1 · 2020-10-25T15:29:23+0000

Answer:

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 ..