Understanding Parabolas: Minimums and Maximums

What does it mean if the coefficient of x^2 in a quadratic equation is positive?

• The parabola has no vertex.

• The parabola is a straight line.

• The parabola opens downwards, indicating a maximum point.

• The parabola opens upwards, indicating a minimum point.

How do you find the x-value of the vertex in a quadratic equation?

• By using the formula C over 2a.

• By using the formula B over 2a.

• By using the formula A over 2b.

• By using the formula B over 2c.

What is the x-value of the vertex if B is 6 and A is 1?

• 6

• -6

• 3

• -3

How do you calculate the y-value of the vertex once you have the x-value?

• By substituting the x-value into the original equation.

• By adding the x-value to the original equation.

• By multiplying the x-value by the original equation.

• By dividing the x-value by the original equation.

What is the ordered pair of the vertex if the x-value is -3 and the y-value is -6?

• (3, 6)

• (-3, -6)

• (3, -6)

• (-3, 6)