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

x = −3
x = 1
x = 5
x = −15

help please will give brainliest

x = 1

Step-by-step explanation:

The graph intersects the x-axis at -3 and 5.  The axis of symmetry is precisely halfway between these two points:  (-3 + 5) / 2 = 2 / 2 = 1.

The axis of symmetry is the vertical line x = 1.

answer:

a=9

step-by-step explanation: lmk if you need a explanation

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct