Question

Find the equation of the axis of symmetry of the following parabola using graphing technology.
y, equals, minus, 5, x, squared, plus, 10
y=−5x
2
+10

Answer 1

The parabola is y = -5x^2 + 10, which has the form y = ax^2 + bx + c with b = 0. The axis of symmetry is x = -b/(2a) = 0.

So the equation of the axis of symmetry is x = 0. (The vertex is at (0, 10).)