Question

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 this is due todayyy

Answer 1

x = 1

Explanation:

Remember that the axis of symmetry is exactly halfway between the x-intercepts. Find the average of -3 and 5 to obtain this x-value: It is:

-3 + 5

x - intercept = ------------ = x = 1

2