Statistics
What is the mode of the data set?
P = {5, 8, 1, 3, 6, 2, 6, 7, 2, 6, 3}
6
Is x=8 a solution for 2x+10<4x-7
No, 26<25 does not work!
Identify the slope and y-intercept: 6x+3y=18
slope = -2
y-int = 6
I have 2 items in my shopping cart and I add 3 items every minute. How many items will be in my cart after 10 minutes?
What is a system?
Two or more equations
Which data set has the bigger median?
A = {12, 63, 26, 29, 25, 64}
B = {67, 35, 23, 78, 19, 22}
15h + 3k = p , solve for k
k = (p - 15h)/3
What is the value of x when y is 4?
-2x+5y=-20
x = 20
You start with a full tank of gas at 35 gallons. Each mile you drive you look 2 gallons. Write an equation to represent this situation.
y = 35 - 2m
What is the slope of x=4
Undefined
{5, 7, 1, 6, 2, 2, 12, 6, 2, 7}
Mean = 5
f(x) = x2 + 5x + 2 , what is f(-6)?
8
if y = 16x - 4, what is x?
y = 4(2x - 3)
x = -1
A rectangular banner is 16 feet long and has an area of 80 square feet. What is the perimeter of the banner?
42 feet
True of false, y = 10 for the system.
5x-4y=20
-2x+3y=1
False
Find Min, Q1, Median, Q3 and Max for the following data:
{3, 6, 1, 6, 7, 2, 7, 8, 12, 12, 5}
Min = 1
Q1 = 3
Median = 6
Q3 = 8
Max = 12
Create a function form the table below:
x f(x)
1 4
2 7
4 13
f(x) = 3x + 1
Complete the table of the function f(x) = 5x - 2
x f(x)
0
1
2
3
-2
3
8
13
You buy 8 pounds of apples and 5 pounds of oranges. If one pound of apples is $3 and one pound of oranges is 5, how much money did you spend in total?
Total of $49
y = x2 + 1 is a ___________ function.
Quadratic
Draw a picture of a scatter plot that has a negative correlation
At what value of x does f(x) = g(x)?
f(x) = 1/2x
g(x) = -2x+1
x= 0.4
f(x) = -x + 7 and g(x) = 6x
What is the solution to the system?
(1,6)
Ashley is selling banana bread and zucchini bread at a farmers market. Banana bread costs $8 each and zucchini bread costs $10. She would like to make at least $100. Create a system to represent this situation if she only has time to make 10 of each type of bread.
8b+10z >= 100
b + z <= 20
What is the x value for:
5x+y=4
6x-y=7
x=1