Transformation of functions
What is the shift from f(x) to g(x)
f(x) = x2 and g(x) = x2 + 3
The shift from f(x) to g(x) is 3 units up
Find Outliers using this table. (The numbers on top match the ones on the bottom)
(x): 20,40,50,60,60,60,70,80,90,90
(y): 30,40,40,20,60,95,75,75,90,95
(60,20)(60,95)
Simplify the fallowing expression:
(2x2+4x-7)+(3+5x2)
7x2+4x-4
Black
What is the shift from f(x) to g(x)
f(x) = 2|x|
g(x) = 2|x + 3|
The shift is 3 units left.
Cuppy records data of his recent amount of sleep he gets compared to his recent test scores. x stands for hours of sleep he gets and y stands for his grades in percentages.
x: 3, 6, 7, 4, 5, 8, 5, 9, 6, 4
y:42,58,78,52,46,90,61,91,68,39
Would you say this is a strong or weak correlation? What do you think the r (correlation coefficient) is? (must be at least within a range of one to the actual r value)
It is a strong correlation with a correlation coefficient of .9445
Find the product of this polynomial.
(3x-8)(x+7)
3x2+13x+56
Is Ms. Yang's boyfriend from Paris?
False(?)
Will the change in the graph be squished or stretched? Vertically or horizontally?
f(x) = |x|
g(x) = 1/2|x|
Stretched horizontally
Using the same data as Cuppy's, what is the line of best fit. Here's the data: x stands for hours of sleep he gets and y stands for his grades in percentages.
x: 3, 6, 7, 4, 5, 8, 5, 9, 6, 4
y:42,58,78,52,46,90,61,91,68,39
a. y= 11.2x + 10.3
b. y = 8.7x + 9.6
c. y = 9.5x + 8.6
d. y = 9.3x + 8.9
The answer is c, y = 9.5 + 8.6
(-4x2-x+7)-2(2x2+9+7x)
-8x-15x-11
What are Ms.Yang's ethnicities?
Hmong mixed with Laos.