Equations, Etc
What's my Line?
Form-fitting
Separate but not equal
Stat-O-Matic
100
Evaluate:
4+2^3-4*3
0
100
Is this linear?
y=3x^2-5
No!
100
Write the point-slope form of the line through (5, -1) with slope = -2
y + 1 = -2(x - 5)
100
Solve:
n-3> -5
n > -2
100
Find the MEDIAN for . . .
12, 28, 13, 9, 21, 10, 19
9, 10, 12, 13, 19, 21, 28
Median = 13
200
Solve:
2x-3=-7
x = -2
200
Find the slope:
y=-1/3x+5
-1/3
200
Find the standard form of
y=1/3x+2
x - 3y = -6
200
Solve:
2x ≤ -10
x ≤ -5
200
What number is Q3?
70
300
2/5x-2=4
x = 15
300
If f(x) = -3x + 4, evaluate f(-2)
10
300
What is the slope-intercept form for
y=-2/3x+5
300
Solve:
-5x+2> -13
x < 3
300
What is the IQR?
5
400
Solve:
2(x+4)=-1-x
x=-3
400
Write the y = mx + b equation for this table:
y = -3x + 1
400
Write in slope-intercept form:
3x+y=6
y = -3x + 6
400
Solve:
abs(x-2) ≥6
x ≤ -4 or x ≥ 8
400
Which number is the SLOPE?
2.67
500
There are 27 students in the class, and x of them are boys. How many girls are in the class?
27 - x
500
What is the slope of this line?
4/3
500
Classify these two lines as parallel, perpendicular, or neither:
y=3x+4 y = 1/3x - 7
Perpendicular!
500
Solve:
-6 < 2x -4<8
-1 < x < 6
x > -1 and x < 6
500
What number is the correlation coefficient?
r = .9967