Semester 2 Final Review

Rules

200

Anything to the Zero Power is. . .

1

400

The expression x^-n=1/xⁿ represents what rule?

Negative Exponent Property

600

(x²-25) is called. . .

Difference of Two Squares

800

True or false: Let's say you are trying to factor ax²+bx+c where a is NOT equal to 1.

To start you would put c in the top of your "star" and b in the bottom of your "star".

False, you would put ac in the top of your star

1000

This question requires 2 answers. . . When exponents have the same base and you are multiplying them like in y⁵ x y⁷ you ______ the exponents. When exponents have the same base and you are dividing them like in g⁴/g² you ____ the exponents.

add;subtract

Master Factorer

200

To multiply 2x(5x²+7) use the _____ Property

Distributive

400

The product of (x+8)(x+8) is called a. . .

Perfect Square Trinomial

600

(x-5)(x-5) =

x²-10x+25

800

(x-5)(x+5) =

x²-25

1000

If you cannot factor a polynomial nicely, you can always revert to using the _____________

Quadratic Formula

That's Rad

200

What is the greatest square root that goes into 54. . .

9

400

True/False: The square root of -16 is -4

False; you cannot take the square root of a negative number

600

True or false: You can add 5(rad 12) + 2(rad 3)

True

800

True/False: You cannot multiply radicals unless they are like terms

False

1000

How do you get rid of a radical in the denominator

Multiply the fraction by the denominator again; multiply by the conjugate

Stats

200

What is the difference between a sample v. population?

A sample is the portion of the population; A population is all the members of a group of interest

400

Ms. B referred to this as basically stalking. . .

Observational Study

600

True/False: The mean, median, and mode change if you are transforming a data set by adding or subtracting.

True

800

What values change when you are trying to transform a data set by multiplying or dividing. . .

Mean, Median, Mode, Range, Standard Deviation

1000

List all the types of Samples. . .

SRS; Convenience; Self-Selected; Stratified; Systematic

Free for All

200

What is the domain of all the quadratic functions we worked with?

All real numbers

400

True/false: (15)² and -15² = 225

False

600

Why does the graph of y=-5x²+7 open downward?

The coefficient attached to x² is negative

800

If a die is rolled, what is probability you will roll at least a 1?

6/6 or 100%

1000

If the square root of 4 is 2 and 7²=49, when you are solving equations involving radicals and trying to find x you must always __________ _________ ______ to get rid of the radical.

Square both sides