Graphing
What is the equation of a line?
y = mx + b
Name 2 of 3 ways to solve systems of equations
Graphing, Substitution, Elimination
What determines if something is a function?
Vertical line test (hits once); x cannot repeat
When should we go into the STAT menu?
List, Box-and-whisker plot, mean, median, Linear Regression, correlation coefficient, etc.
What is the Central Islip High School mascot?
Musketeers
What letter is used to represent slope? What is slope?
m; rise/run; steepness
When solving systems by graphing, what should you look for?
Where the lines meet/intersect. POI, Point of Intersection
(1, 2) (3, 4) (4, 3), (2, 1)
Yes
Find the mean of the following:
2, 4, 17, 8, 11, 4, 2, 16
8
What are our school colors?
Black, Purple, Gold
Is the point (3, -4) on the line
y = -6x + 14
Yes
Solve the following by Substitution:
y = x + 1
2x + y =10
(3,4)
Is the following a function?
(-2, 4) (4, -8) (6, 3) (-2, -5)
No
Give the 5 number summary for a box plot using:
35, 47, 63, 71, 79, 85
min, Q1, med, Q3, max
min = 35; Q1 = 47; med = 67; Q3 = 79; max = 85
How many administrators (principal and assistant principals do we have?
1 principal, 5 assistant principals = 6
Rewrite the following in y = mx + b form:
10x - 5y = 20
y = 2x - 4
Solve the following by elimination:
2x - 3y = -2
12x + 3y = 72
(5,4)
If f(x) = 7x2 + 3, find f(4)
115
Find the linear regression equation for the points:
(11, 264) (12, 638) (13, 700) (14, 850) (15, 1000) (16, 1230) (17, 1495)
Round to hundredth place.
y = 184.89x - 1706.07
Roughly how many students are enrolled in CIHS?
2600
Rewrite into y = mx + b form AND explain what the graph would look like:
-2y + 4x > 16
y < 2x - 8; dashed line shaded below
Solve the following by Elimination:
2x + 3y = 31
4x - 2y = -10
(2,9)
If f(x) = 5x + 9, find f(x) = 34
5
What is the correlation coefficient for the points below:
(11, 264) (12, 638) (13, 700) (14, 850) (15, 1000) (16, 1230) (17, 1495)
Round to hundredth place.
r = .99
What year did the first students graduate Central Islip High School?
1939