Systems of Equations
Parallel lines have __________ slopes.
"the same"
What are the 3 types of rigid transformations?
Translation, reflection, rotation
What is an angle bisector?
Cuts an angle directly in half, creating two congruent angles on both sides
What do all vectors have?
Direction and magnitude
A data set with a perfectly linear negative correlation has this r-value
What is "-1"?
y = 3x + 2
Please provide a line that is perpendicular to the above line:
y=-1/3 x + b
What is a rotation?
A point or a set of points rotating a number of degrees around a point of origin, clockwise or counter-clockwise
True or False: A rhombus, square, and rectangle are all types of parallelograms.
TRUE
What is the 2 x 2 Identity Matrix?
[ 1 0 ]
[ 0 1 ]
Likes math | Loves math | Total | |
Is in math club | 25% | 75% | 100% |
Is not in math club | 50% | 50% | 100% |
Total | 35% | 65% | 100% |
What type of frequency table is this? (By column, by row, by total?)
Frequency table by row
How many solutions does this system of equations have?
2x + 3y =5
4x + 6y = 10
No solution
A character Mario riding up the escalator is performing which transformation?
Translation
If Vector v= <-5, 3>,
What is -3v?
Vector -3v = <15, -9>
Ruby | Deion | Oscar | Ms. Albrecht | |
Slices of Pizza eaten | 0 | 2 | 5 | 9 |
Increase in test scores | -1 | 3 | 4 | 10 |
Based on the data above, would you recommend a student to eat pizza the night before a test to increase test scores, why or why not?
Yes there is a positive correlation between slices of pizza eaten and an increase in test scores.
Solve the system of equations:
2x+y=5
-3x-y=1
(-6, 17)
With your team, demonstrate/perform a translation, reflection, and rotation.
()
Find the multiplicative inverse of:
[ 1 3
2 -7 ]
-13
Likes math | Loves math | Total | |
Is in math club | 25% | 75% | 100% |
Is not in math club | 50% | 50% | 100% |
Total | 35% | 65% | 100% |
Make an observation about the highlighted cell(75%)
75 % of students who are in math club loves math
Find the rotational symmetry of a square
90 degrees, 180 degrees, 270 degrees, 360 degrees
Find the determinant of this matrix:
[ 1 3.5
-2 -7 ]
What is this matrix's multiplicative inverse?
determinant = 0
This means there is NO multiplicative inverse
Ruby | Deion | Oscar | Ms. Albrecht | |
(x)Slices of Pizza eaten | 0 | 2 | 5 | 9 |
(y)Increase in test scores | -1 | 3 | 4 | 10 |
If you were to graph the above data on a scatter plot and estimate the regression line, what would the slope of the line represent?
The slope would represent the test score increase per slice of pizza eaten.