Equations
Is this a function?:
{(1, 2), (2, 3), (2, 4)}
No, y values cannot share the same x value (2) in order to be a function
What is the equation used to solve linear formulas?
y= mx + b
Find the slope:
y = 1/2x - 9
1/2
Evaluate:
2*4+8*3
32
What is my girlfriend's name?
Lizzy
Algebra: Solve for a: ax + b = c
Algebra: a = (c - b)/x
Write an equation of a line in slope intercept form that:
Has a slope of -1
Has a y intercept of -1
y=-x-1
What is the slope of the following equation:
y = x + 2
1
3(4x + 1y - 8 + x - 10)
15x + 3y - 54
How many kids do I have?
None (yet!)
Solve: 3v + 3 - 2v = 21
v = 18
What is the value of y(3x+19) if x = -1 and y=3?
48
Where does the equation y=12x cross the y axis?
At the origin (0,0)
What's the slope?
y - 1 = -3/2 (x - 6)
-3/2
Evaluate:
{(2*3) +(7*4)} +2
36
How many siblings do I have?
Two (Frank & Jodi)
What are the factors of the expression x² - 5x + 6
(x-3)(x-2)
Give an equation that would run parallel to the line
y=9x/2 +12
Any y=mx+b equation where the slope remains the same but the y intercept changes
What's the slope?
6x + 7y = 23
-6/7
Simplify:
-(x + 7) -2(4x + y)
- 9x - 2y - 7
What kind of pets do I have and how many?
One dog (Daisy.. by way of Lizzy)
One cat (Athena.. by way of mom and dad.. by way of Frank)
What are the solutions (x-intercepts) of the quadratic equation x² - 4x - 12 = 0?
x = -2, x = 6
simplify: 3(6wd - 3) + w3d
21wd - 9
y = 1/2x - 8
Lots of answers:
... (-2,9) (0,8) (2,-7) (4,-6) ...
What's the slope of the line passing through (3,9) (5,4)
slope: -5/2
Simplify:
1/4(-4 + 16x) - 2/5(20x - 15)
5 - 4x
Where did I go to college?
Binghamton University / (SUNY) Binghamton