Box Plots
What is the name of the line in the middle of the box plot?
The median
(6k − 7k2) + (4k2 + 6)
−3k2 + 6k + 6
How did the graph move?
f(x) = x2 + 3
Up 3
3% simple interest on $100 after 5 years - What's my total?
$115
Solve for the zeroes:
(k + 1)(k − 5) = 0
-1, 5
The box in the box plot holds how much of the data?
50%
Factor: x2 + 6x + 8
(x + 4)(x + 2)
How did the graph move?
f(x) = (x + 3)2 - 4
Down 4
To the left 3
3% compound interest on $100 after 3 years - What's my total?
$109.27
3x2 + 9x − 6 = 0
x = −3± √ 17/ 2
What is the IQR?
Q3 - Q1, Inner Quartile Range
What happens when you multiply the equation by a factor of 2?
The values get bigger at a faster rate
9x2 + 7x − 4 = 0
x = −7± √ 193/18
What does the IQR tell us?
It helps us find the skewed values.
(8x + 2)(3x2 + 4x − 5)
24x3 + 38x2 − 32x − 10
How did the graph move?
f(x) = 0.5(x - 0.75)2 + 45
Values halved
To the right 0.75
Up 45
Factor:
2x2 - 5x - 3
(2x + 1)(x - 3)