Quadratics Intro

Which of the following are not a quadratic equation?

• $x^2+3x+4=0$

• $y=2x+5$

• $-4x^2+x-8=0$

What is the vertex?

• The bottom or top most point of the parabola

• Any point on the graph

• The shape of the graph

When is a graph "flipped" upside down?

• When a is a negative

• When a is less than 4

• When c is equal to b

How many solutions does this function have?

• 1

• 0

• 2

What are the solutions for the following graph?

• 
  

  $x=-2,\ 2$
  

• $x\ =\ 0$

• $x=-4$

Does the graph have a minimum or a maximum?

• minimum
• maximum

Tags

CCSS.HSF-IF.C.7A

Does the graph have a minimum or maximum?

• minimum
• maximum

Tags

CCSS.HSF-IF.C.7A

Solve for x:

(x - 9)(x + 3) = 0

• x = 3 or x = 9

• x = 3 or x = -9

• x = -3 or x = 9

• x = -3 or x = -9

Solve for x by factoring:

x² + 13x + 40 = 0

• -8, 5

• -40, -1

• 5, 8

• -8, -5

 What is Standard Form of a quadratic equation

•  $a+b+c=0$  

•  $ax^2+bx+c+0$  

•  $ax^2+bx=c$  

•  $ax^2+bx+c=0$