What is the axis of symmetry of the graph of #y = x^2-3x+9#?

1 Answer
Jul 11, 2018

Answer:

#x = 3/2# or #1.5#

Explanation:

To find the axis of symmetry of a standard quadratic equation #(y = ax^2 + bx + c)#, we use the formula #x = (-b)/(2a)#.

We know that #a = 1# and #b = -3#, so let's plug them into the formula:
#x = (-(-3))/(2(1)) = 3/2#

Since the axis of symmetry is a line, it is #x = 3/2# or #1.5#.

Hope this helps!