Algebra Trivia!

Functions

100

Which axis is the dependent quantity on?

y-axis

200

Which value cannot be repeated in a function?

x-value

x-coordinate

300

When do you use the vertical line test?

Testing if a graph is a function or not. 

400

What type of function is this?

f(x) = |x + 5| - 3

absolute value function

linear absolute value function

500

Which two functions both increase and decrease?

Absolute Value Function

Quadratic Function

Sequences

100

What type of sequence uses addition for their pattern?

Arithmetic Sequence

200

What type of sequence is the pattern?

1, 2, 4, 8, 16, ...

Geometric Sequence

300

What is next in the pattern?

1, 2, 3, 5, 8, 13, ...

21

400

What is the 8th term of the sequence

if a₁= 3 and d= 4?

31

500

What is the recursive formula for a geometric sequence?

g_n=g_n-1*r 

Linear Regression

100

What is another name for Linear Regression?

Line of Best Fit

200

y =mx+b

Which variable is the slope of the line?

Which variable is the y-intercept?

m = slope

b = y-intercept

300

What is the linear association if the correlation coefficient is r = 0.88 ?

Strong, Positive Association

400

What is a residual in linear regression?

Observed - Predicted Value

Distance from Predicted Value to Observed Value

500

The line of best fit is y= 4.5x + 11 , where x is the number of weeks and y is the amount of money. How much money will you have in 5 weeks?

$33.50 !

Geometry

100

What is the formula for the area of a parallelogram?

A = b * h

200

What is the area of a triangle with a base of 11 feet and height of 5 feet?

22.5 ft²

11 * 5 / 2 = 22.5 squared feet

300

if <A = 115º , what is <B if there are supplementary angles?

65º

400

if an image has a base of 3 inches and height of 5 inches, what will the area be if we increase the size by a scale factor of 2? 

60 in²

6in * 10in = 60 inches squared

500

If a pizza has a diameter of 14 inches, what is the area of the pizza?

A = π * r²       (π = 3.14)

153.86 in²

3.14 * 7² = 153.86 square inches

Statistics and Probability

100

What is the common word used for "finding the mean"?

average!

200

Is this a statistical question:

What is my favorite color?

No! 

Question does not ask a population

300

If you have 3 green marbles, 4 yellow marbles, 2 red marbles, and 3 blue marbles, what is the probability of pulling a yellow or blue marble? 

7/12

4/12 + 3/12 = 7/12

400

What is the probability of flipping heads three times in a row? 

1/8 chance

1/2 * 1/2 * 1/2 = 1/8

500

What is the difference between experimental and theoretical probability? 

Theoretical probability is the expected probability

Experimental probability is the actual probability someone gets from running tests.