Exponents
Solving for "x"
Area Model
Exponential Equations
Linear Equations
Application of Scatterplots
Thinking about scatterplots
Classroom Norms
100
(4x3)(-7x5)
-28x8
100
4(x - 7) + 8 = -16
x = 1
100
Write the area as a sum using the area model.
(x + 4)(x + 3)
x2 + 7x + 12
100
4x+3 = 46
x = 3
100
Which equation is parallel to y=1/2x - 7
a. y=-1/2x + 7
b. y=2x - 7
c. y=1/2x -5
d. y=-2x + 3
Parallel lines have the SAME slopes.
Answer c is correct.
100
Joshua wants to compare his distance run (x) to calories burned (y) and see if there is a relationship between the two. The following scatterplot shows the data of Joshua's 10,000 meter run (6.2 miles). Write an equation for the line of best fit.
y = 25/3x + 50
100
Draw an example of what a strong, positive, linear scatterplot with 1 outlier would look like.
100
When are phones, earbuds, or any electronic devices suppose to be put away?
Before coming into the classroom.
200
(-9x0y3)2
81y6
200
3(x + 9) - 5 = 14x
x = 2
200
Write the area as a sum using the area model.(x - 7)(x + 2)
x2 - 5x - 14
200
2x-6 = 27
x = 13
200
Which equation is perpendicular to y=1/2x - 7
a. y=-1/2x + 7
b. y=2x - 7
c. y=1/2x -5
d. y=-2x + 3
Perpendicular lines have slopes that are the opposite reciprocals.
Answer d is correct.
200
What is the meaning of the slope in the context of the scatterplot example.
The slope demonstrates that for every 3 minutes of running, 25 calories are burned. 8.3 calories burned per 1 minute.
200
This is the term for data that does not fit the normal data trend.
Outlier
200
According to Mr. Trutnah (Math 2 Teacher) how long does the average student need to go to the restroom in the D building? Closest answer wins the points.
2 minutes
300
5a3b3 * (ab2)-1
5a2b
300
2/3x + 1/2x = 7
x = 6
300
Write the area as a sum using the area model.
(3x - 2)(4x + 5)
12x2 +7x - 10
300
5(2x-6) = 25
x = 4
300
Write and equation of the line given that passes through the points (-6,3) and is perpendicular to
y=3x - 5
y=-1/3x + 1
300
What is the meaning of the y intercept in the context of the scatterplot below?
At 0 minutes, calories burned start at 50 calories.
300
How would you describe the following scatterplot in terms of form, direction, strength, and outliers?
Linear, negative, strong correlation, with no outliers.
300
Where should you go to retake or make up tests?
Mr. Dyck's classroom (E07)
400
(81p^8q^4)/(9pq^2)
9p7q2
400
1/4x + 1/2x + 2 = 8
x = 8
400
Write the area as a sum using the area model.
(8x - 3)(4x - 2)
32x2 -28x + 6
400
33x-2 = 27
x = 5/3
400
Write and equation of the line given that passes through the points (-6,3) and is parallel to
y=3x - 5
y=3x + 21
400
y = 1/15x + 175
is the line of best fit from a scatterplot showing the relationship between the number of days money is saved (x) and the amount saved (y).
Use the equation to predict the the balance of the savings account at 180 days.
$187 dollars
400
If the relationship between the actual cost of a cleaning service and the predicted cost of a cleaning service has a residual of -25, what does this mean about the cleaning cost?
The predicted value is too high and the actual cleaning cost is lower.
400
How many times is the final exam accounted for in the gradebook?
Twice
500
25p7r-1/5p6r-1
5p
500
0.20x + .6x = 8
x = 10
500
Write the area as a sum using the area model.
(3x2 - 2y)(4x + 4)
12x3 -8xy + 12x2 - 8y
500
8x-2 = 644
x = 10
500
What is the equation of the line that passes through (5,6) and is perpendicular to y=-5x - 3
y=1/5x + 5
500
The actual savings account balance at 180 days of savings is $198.
1. Calculate the residual
2. Determine what this means about the predicted value. Is it too high or too low?
Residual: Actual - Predicted
$198 - $187 = $11
Predicted value is too low because we have a postive residual.
500
If the relationship between the actual cost of a cleaning service and the predicted cost of a cleaning service has a residual of +15, what does this mean about the cleaning cost?
The predicted cost of the cleaning cost is too low and the actual cost is higher.
500
What is the difference between a test and a quiz in Mrs. Slayden's classroom?
A test covers all of the content from the Unit and sometimes information from previous units. A quiz covers only a few lessons at a time. You can use notes on quizzes. Tests are weighted more than quizzes.