Graphing Parabolas Quiz

What is the formula used to find the axis of symmetry in a quadratic function in standard form?

• x = A / B

• x = -A / B

• x = -B / 2A

• x = B / 2A

In the first example, what is the x-coordinate of the vertex for the equation y = 2x^2 - 8x + 5?

• x = 0

• x = -2

• x = 2

• x = 1

What is the y-intercept of the parabola in the first example?

• y = 5

• y = -3

• y = 0

• y = 2

In the second example, what does a negative 'a' value indicate about the parabola's direction?

• It opens upwards

• It opens downwards

• It is a straight line

• It has no vertex

What is the maximum value of the parabola in the second example?

• 0

• 10

• 5

• -5

What is the domain of the parabola in the second example?

• x < 0

• x > 0

• x = 0

• All real numbers

What is the range of the parabola in the second example?

• y ≥ 5

• y > 5

• y < 5

• y ≤ 5

In the third example, what is the x-coordinate of the vertex for the equation y = 0.5x^2 - 4x + 1?

• x = 4

• x = 2

• x = -4

• x = 0

What is the minimum value of the parabola in the third example?

• -5

• -7

• 0

• 7

What is the range of the parabola in the third example?

• y < -7

• y > -7

• y ≤ -7

• y ≥ -7