Graphing Quadratics in Standard Form

What is the standard form of a quadratic equation?

• y = ax^2 + bx^2 + c

• y = ax^3 + bx + c

• y = ax + bx + c

• y = ax^2 + bx + c

In the equation y = 2x^2 - 8x + 3, what is the value of 'a'?

• 1

• 3

• -8

• 2

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

• x = b / 2a

• x = -b / 2a

• x = -a / 2b

• x = a / 2b

What is the x-value of the vertex for the equation y = 2x^2 - 8x + 3?

• 4

• -4

• 2

• -2

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

• Subtract x from the constant term

• Multiply x by 2

• Substitute x into the original equation

• Divide x by 2

What is the y-value of the vertex for the equation y = 2x^2 - 8x + 3 when x = 2?

• -3

• 3

• 5

• -5

What is the axis of symmetry for the vertex at (2, -5)?

• x = -5

• y = -5

• y = 2

• x = 2

What is the purpose of the axis of symmetry in graphing a quadratic equation?

• It identifies the maximum or minimum point

• It determines the slope of the parabola

• It divides the parabola into two mirror images

• It helps to find the y-intercept

Tags

CCSS.HSF-IF.C.7A

How do you find additional points to plot on the graph of a quadratic equation?

• By finding the derivative

• By solving for x-intercepts

• By using the quadratic formula

• By creating a table of values

Tags

CCSS.HSF-IF.C.7A

What is the y-value when x = 0 for the equation y = 2x^2 - 8x + 3?

• -3

• 0

• 3

• 8

Tags

CCSS.HSF.IF.A.2