Topic 1
Convert 0.444… to a fraction.
4/9
Solve for x: -0.65x + 0.45x = 5.4
Make a diagram, Is (9,9),(3,2),(2,9),(4,8),(4,1),(8,4),(9,0),(6,7) a function?”
Use the data to find the point that represents data in the fifth column:
Age of kids: (10, 12, 14, 11, 17)
Number of votes: (3, 5, 9, 12, 7)
(17,7)
Classify each number as rational or irrational and explain. OPTIONS:
⅔ , (perfect square symbol)25 , -0.75( repeating) , (perfect square symbol)2 , 7,548,123
⅗, sqrt 25, -0.75(repeating), and 7,548,123 are rational because one is uses two
integers, the other has a result of an integer, the other repeating decimal can be written as a fraction, and the last
one is an integer.
Convert 0.818181… to a fraction.
81/99
Solve for x: 4/5x + 1/5x = 87
87
Use the points (4,25), (9,70), and make an equation using the format y = mx + b, then graph the function.
y = 9x - 11
How would you describe a scatter plot with a relationship between paired data?
Shows how two variables are related.
Convert 0.555… into a fraction
5/9
Convert 0.0757575… to a fraction.
5/66
How many solution does this equation have 3x + 1.5 = 2.5x + 4.7
One solution
Compare the functions, (3,52),(5,78),(7,104), and (9,130) are the first function, and the second function is y= 11x + 15.
The first function has the greater slope but the smallest y-intercept.
If you argued with a friend, about a scatter plot having a cluster, gap, outlier and associations would you agree or disagree?
Agree
Hakeem subtracted 8 from a number, then multiplied the difference by The result was 20. Write and solve an equation to find the number, x.
x = 48
Convert 2.313131… to a fraction.
299/99
A contractor buys 8.2 square feet of sheet metal. She used 2.1 square feet so far and has $183 worth of sheet metal remaining. Write and solve an equation to find out how much sheet metal costs per square foot.
6.1+c=183 and $30 per square foot
Which one is are not a nonlinear function, 1. Graph with a curvy line, 2. A graph with a straight line, and 3. A graph with a V shape.
A graph with a straight line.
Analyze Linear Associations: Which paired data would most likely show a negative association? Select all that apply
A. The amount of time cutting your hair and the length of your hair
B. The amount of students in school and the amount of pets they have
C. Amount of time running and the amount of distance covered
D. Amount of time running and the amount of energy you have left
A. and D.
Make a diagram, is (5,90), (3,40), (9,30), (10, 40) (6, 20), (7, 90) a function?
It is not a function
Convert 0.475475… to a fraction
475/999
Edy has $450 in her savings account. She deposits $40 each month. Juan has $975 in his checking account. He writes a cheek for $45.45 each month for his cell phone bill. He also writes a check for $19.55 each month for his water bill. After how many months will Edy and Juan have the same amount of money
M=5
Is this a Function or Not A function, (9,0),(3,0),(5,4),(6,3),(1,3),(3,9),(5,9),(5,6)? Explain your answer
Not a function
Can you describe the difference between a cluster, a gap, and an outlier?
A cluster is a group of data points close together, a gap is a large empty space between points, an outlier is a data point far away from other data points.
xUse Distributive property to solve 28- (3x+4)=2(x+6)+x.
x = 2