4th 9wks Vocab

Question 1

What are the three forms of a linear equation?

Answer 1

Point slope, slope intercept, and standard

Question 2

What is the slope formula?

Answer 2

X2-X1

Question 3

What is the midpoint formula?

Answer 3

X1+X2 Y1+Y2
——– ———
2 2

Question 4

Know the distance formula

Answer 4

Ok

Question 5

What is the X intercept for any graph?

Answer 5

Where it crosses the X axis

Question 6

What is the Y intercept for any graph?

Answer 6

Where it crosses the Y axis

Question 7

How can you tell the direction of a quadratic graph?

Answer 7

Looking at a

Question 8

How do you find the vertex of a quadratic graph?

Answer 8

X= -b
—
2A

Plug in X to get Y

Question 9

What is the graph of a quadratic called?

Answer 9

A Parabola

Question 10

What are the four steps in factoring?

Answer 10

GCF, grouping if there’s 4 terms, box/trinomial, special cases

Question 11

What are the four ways to solve a quadratic equation?

Answer 11

Roots, factoring, completing the square, quadratic formula

Question 12

What are the four ways to solve a system of linear equations?

Answer 12

Graphing, substitution, elimination, linear combination

Question 13

What are the three outcomes to a system of linear equations?

Answer 13

Ordered pair, zero with a line through it, same line

Question 14

What is absolute value?

Answer 14

The distance from zero on the number line

Question 15

Two numbers that are the same distance from zero are called what?

Answer 15

Opposites

Question 16

What is the number one rule of factoring?

Answer 16

GCF

Question 17

How many roots do you get if you are taking an even root?

Answer 17

2

Question 18

You cannot take an even root of which type of number?

Answer 18

A negative

Question 19

When you are simplifying radicals, how can you tell if the answer is rational or irrational?

Answer 19

No radical sign, _/, means it’s rational and vice versa

Question 20

What must match in order to add radicals?

Answer 20

The radicands

Question 21

What is an imaginary number?

Answer 21

Square root of a negative number

Question 22

What does i represent?

Answer 22

_/-1

Question 23

What is the cycle of i?

Answer 23

i, -1, -i, 1

Question 24

How many roots do you get if you are taking an odd root?

Answer 24

1

Question 25

Can you take an odd root of a negative number?

Answer 25

Yes

Question 26

What is the term for the number under the radical?

Answer 26

Radicand

Question 27

What does it mean to rationalize and radical expression

Answer 27

Converting the denominator to a rational number

Question 28

What are two other names for the roots of a quadratic equation?

Answer 28

Zeros and intercepts

Question 29

What are the four things that you can do with an expression?

Answer 29

Evaluate, multiply by one, simplify, add zero