Quadratic Definitions

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

Find the axis of symmetry for f(x) = x²- 4x + 5.

• x = -2

• x = 2

• y = 2

• y = -2

• y= 2x +1

What are the coordinates of the vertex? Is it a maximum or a minimum?

• (2, 3); minimum

• (2, 5); maximum

• (2, 3); maximum

• (2, -3); minimum

• (2, -3); maximum

Match the following vocab definitions to the correct word:

• The graph of a quadratic function.

• Parabola

• Where a parabola hits the y-axis

• Vertex

• Line where a parabola is "cut" in half

• Y-intercept

• The turning point of a parabola.

• Axis of Symmetry

• The x-ints, a.k.a. roots of a parabola

• Zeros

Click on the graph where the vertex of the quadratic function is located.

Click on the graph where the y-intercept of the quadratic function is located.

Tags

CCSS.HSF-IF.C.7A

The parabola y = x² - 4x + 5 will have a vertex, write as a coordinate (x, y)

Click on the graph where the zeros of the quadratic function are located.

Tags

CCSS.HSF-IF.C.7A

This formula is called...

f(x) = ax² + bx + c

• y-intercept

• Slope-Intercept

• Quadratic

• Vertex