Absolute Value
Functions
Direct Variation
Linear Equations
Miscellaneous
100
What is absolute value?
Distance from zero.
100
What is a function?
A relation where every x has exactly one y.
100
What is the direct variation equation?
y = kx
100
Name three types of slope.
Positive, negative, zero, undefined.
100
What national holiday is celebrated in all countries?
New Year's Day
200
How many equations do you need to solve an absolute value equation?
Two
200
Is this a function?
Yes
200
What point do all direct variation equations have in common?
(0. 0)
200
Find the slope between the points (-3, 1) and (4, -2).
-3/7
200
What is the most common M&M color?
Blue
300
Is this an "AND" or an "OR" situation?
3|x-2| >5
OR
300
Write the equation in function notation: y = 3x - 2
f(x) = 3x - 2
300
Suppose y varies directly with x, and y = 20 when x = 4. Write the function that models the variation.
y = 5x
300
Write an equation in slope-intercept form:
y=-1/3x-2
300
How many stars are there in our solar system?
One, the sun!
400
Solve |3x + 2| = 4x + 5.
x = -1 (x = -3 is extraneous)
400
If f(x) = -x2 - 9, find f(2).
f(2) = -13
400
Suppose y varies directly with x, and y = 15 when x = 3. Find y when x = 7.
y = 35
400
Write the equation in point slope form through the points (-1, 4) and (2, -2)
y - 4 = -2(x + 1) or y + 2 = -2(x - 2)
400
What is Mickey Mouse's original name?
Mortimer Mouse
500
Solve |2x - 1| < 5.
-2<x<3 or (-2 , 3)
500
If g(x) = 2x +5, find 6[g(-1)].
18
500
Write the direct variation equation through (2, 7).
y=7/2x
500
Write the equation in standard form:
y = -2/5x -3
2x +5y = -15
500
How many toes does a cat have?
18: 10 on the front and 8 on the back