What is the vertex of the graph of $y=2x^2+4x+8$?

What is the vertex of the graph of $y=-x^2+10x-16$?

A quadratic function has a leading coefficient of -2 and zeros at x = 2 and x = 4. What is the vertex of its graph?

What is the equation of the axis of symmetry of the graph of $y=x^2-10x+19$?

What is the equation of the axis of symmetry of the graph of $y=x^2+2x+3$?

What is the vertex of the graph of $y=4x^2+24x+28$?

What is the equation of the axis of symmetry of the graph of $y=3x^2-36x+105$?

What is the vertex of the graph of $y=-4x^2-24x-38$?

Does the graph of $y=2x^2+20x+53$ have a maximum or a minimum, and at what x-value does it occur?

What is the equation of the axis of symmetry of the graph of $y=3x^2+36x+111$?

What is the vertex of the graph of $y=-2x^2+8x-13$?

What is the equation of the axis of symmetry of the graph of $y=4x^2+8x-3$?

What is the equation of the axis of symmetry of the graph of $y=2x^2-8x+8$?

What is the vertex of the graph of $y=-2x^2+24x-65$?

Does the graph of $y=-4x^2+32x-57$ have a maximum or a minimum, and at what x-value does it occur?

What is the vertex of the graph of $y=-x^2+10x-31$?

What is the equation of the axis of symmetry of the graph of $y=-4x^2-48x-146$?

What is the equation of the axis of symmetry of the graph of $y=2x^2+12x+11$?

What is the equation of the axis of symmetry of the graph of $y=-x^2+4x+1$?

Does the graph of $y=4x^2-8x+4$ have a maximum or a minimum, and at what x-value does it occur?

Does the graph of $y=3x^2-36x+114$ have a maximum or a minimum, and at what x-value does it occur?

What is the vertex of the graph of $y=-4x^2+8x-5$?

A quadratic function takes the same value at x = -8 and at x = -2. What is the equation of the axis of symmetry of its graph?

Does the graph of $y=3x^2+24x+51$ have a maximum or a minimum, and at what x-value does it occur?

What is the equation of the axis of symmetry of the graph of $y=-4x^2+8x-7$?

What is the equation of the axis of symmetry of the graph of $y=-3x^2+6x-7$?

What is the vertex of the graph of $y=-2x^2-24x-73$?

What is the equation of the axis of symmetry of the graph of $y=-3x^2-24x-53$?

What is the vertex of the graph of $y=3x^2+6x+5$?

A quadratic function takes the same value at x = 1 and at x = 7. What is the equation of the axis of symmetry of its graph?

A quadratic function takes the same value at x = -7 and at x = 1. What is the equation of the axis of symmetry of its graph?

What is the vertex of the graph of $y=-4x^2-16x-13$?

What is the vertex of the graph of $y=3x^2-12x+16$?

What is the equation of the axis of symmetry of the graph of $y=4x^2+40x+107$?

What is the equation of the axis of symmetry of the graph of $y=2x^2+20x+41$?

A quadratic function has a leading coefficient of -2 and zeros at x = -5 and x = 1. What is the vertex of its graph?

A quadratic function has a leading coefficient of -4 and zeros at x = 0 and x = 2. What is the vertex of its graph?

What is the equation of the axis of symmetry of the graph of $y=-4x^2-16x-10$?

What is the equation of the axis of symmetry of the graph of $y=-3x^2-12x-19$?

Does the graph of $y=4x^2-40x+101$ have a maximum or a minimum, and at what x-value does it occur?