What are the key features of quadratic graphs?

• • If?a?is positive?then the vertex is the?minimum?point
  • If?a?is negative?then the vertex is the?maximum?point

What are the key features of cubic graphs?

These can be found using your GDC

• • These are also called the?x-intercepts
  • There can be 1, 2 or 3?x-intercepts
    • There is always at least 1
• There are either?0 or 2 local minimums/maximums
  • If there are 0 then the curve is?monotonic?(always increasing or always decreasing)
  • If there are 2 then one is a local minimum and one is a local maximum

What are the key features of exponential graphs?

• The coefficient of?x?and the constant?k?determine whether the graph is?increasing or decreasing
  • If the coefficient of?x?and?k?have the?same sign?then?graph is increasing
  • If the coefficient of?x?and?k?have?different signs?then the?graph is decreasing
• There is at?most 1 root
  • It can be found using your GDC

What are the key features of sinusoidal graphs?

• The?maximum value?is?y?=?a?+?d
• The?minimum value?is?y?= -a?+?d
• The?principal axis?is the horizontal line halfway between the maximum and minimum values
  • This is?y?=?d
• The?amplitude?is the vertical distance from the principal axis to the maximum value
  • This is?a