RELATIONSHIPS
PROBABILITY
FACTORING
FUNCTIONS
FORMULAS
100
What is the mean of 2, 5, 6, 7, 6, and 10?
6
100
If I roll a die, then what is the probability I will roll a number less than 3?
1/3
100
What term can you factor out of 8x-20?
4
100
If f(x)=3x^2+10, then what is f(2)?
22
100
In the formula A=(pie)r^2, if the radius doubles, then what happens to the area?
quadruples
200
If x and y have a direct relationship and I double x, then what will happen to y?
It will double.
200
If you flip a coin 3 times, then what is the probability of getting tails all three times?
1/8
200
What are the solutions to x^2+5x-6=0?
-6 & 1
200
The function f(x)=x^2 is a parabola through the origin. Describe the appearance of f(x)=x^2-3.
Slide down y-axis three units.
200
If a recipe calls for 1 cup of water for every 1/3 cup of flour, then how much flour do I need if I use 14 cups of water?
4 and 2/3
300
How do you find the median of a group if there is an even number of items in the group?
Take the two in the middle, and average them.
300
If I have 3 white, 2 black, and 5 blue socks in a drawer, then what is the probability that I'll randomly select a sock that is not white?
7/10
300
What are the solutions to 5x^2+9x-2=0?
1/5 & -2
300
In the function f(x)=ax^2 and a>1, what happens to the function if a is increased?
The graph gets steeper, or close to the y-axis.
300
What is the formula for average?
average=total/# things
400
x=3 and y=5, and they have an inverse relationship. If x is decreased to 1/3, then what would y be?
45
400
If I have 20 numbered balls, then what is the probability that I'll select the number 5 and then 17?
1/380
400
What does it mean if a term has a negative exponent?
It is the reciprocal of the number with a positive exponent.
400
If f(x) is 5x^2+9x-2=36, then what is x?
2
400
What is the formula that tells the number of degrees in a polygon?
180(n-2)
500
What is the mean of 7 numbers that average 9, and 9 numbers that average 7?
7.875
500
If you have a dartboard with an outer black circle radius of 5 and an inner red circle radius of 3, then what is the probability of randomly picking a spot on the board that is in the red area?
9/25
500
What is the polynomial where the solutions are -2 and 3?
x^2-x-6
500
Name a function that goes through the point (0, 4).
Answers will vary, but one is f(x)=x+4
500
Using the formula F=(9/5)C+32, if the temperature of boiling water is 212 degrees Fahrenheit, then what is the temperature in degrees Celsius?
100 degrees Celsius