Quadratic Functions Introduction

Which of the following equations matches standard form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b

The graph of quadratic function k is shown on the grid. Which statements are best supported by the graph of k? Choose ALL that apply.

• The x-intercept is located at (-3, 0)

• The coordinates of the y-intercept are (0, 9)

• The axis of symmetry is x = -3

• The minimum is at -3

Tags

CCSS.HSF-IF.C.7A

The graph of a Quadratic function is shown. Select ALL the statements that are true about the graph.

• The Zeros/Solutions are 1 & -3

• It has a minimum height of 4

• The Vertex is (-1, 4)

• In the Equations ax² + bx + c the value of "a" is negative because it opens down.

• In the equations ax² + bx + c, th value of "c" is 4

Tags

CCSS.HSF-IF.C.7A

How can you determine the y-intercept of the graph of a quadratic function?

• "c" is the constant and this will be the value of y when x = 0. The y-intercept is the point (0,c)

• Throw a dart at the y-axis and the point where it lands is the y-intercept

• Parabolas don't have a y-intercept

Tags

CCSS.HSF-IF.C.7A

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

Which of the following represents a quadratic function?

• 1

• 3

• 2

• 5

• 1

• 3

• 2

• 5

• 4