Unit 1-4

Question 1

Correlation Coefficient

Answer 1

-1,+1,0; how strong a relationship between two variables is

Question 2

Horizontla translations

Answer 2

-Inside and opposite

Ex; f(x+4); left 4

Question 3

What is the Reflection across x axis

Answer 3

• Takes y values and flips it
• Outside the absolute value/paranetheses bars

Ex: -|x|

Question 4

What is the reflection across the y-axis

Answer 4

• takes x values and flips it
• Inside f(x)/ f|x|

Ex; _(-x)²

Question 5

Vertical Translations

Answer 5

• outside f(x)
• exact

Ex; f(x)-4; 4

Question 6

Stretch across the x-axis/ Horizontal stretch

Answer 6

• Inside f(x)
• Opposite
• a<1

Ex; |5x|; horizontal stretch 1/5

Question 7

Stretch across the y-axis/ Vertical stretch

Answer 7

• Outside f(x)
• Exact
• a>1

Question 8

Shrink across the x-axis/ Horizontal shrink

Answer 8

• Inside f(x)
• Opposite
• a>1

Ex; |1/5x|; horizontal shrink 5

Question 9

Shrink across the y-axis/ Verical shrink

Answer 9

• Outside f(x)
• Exact
• a<1

Question 11

Ways to solve quadratic

Answer 11

Square roots, factoring, Solving by the comp;eting of square, Vertex form

Question 12

i₂ is equal to….

Answer 12

-1

Question 13

When multiplying square roots what is the first thing you look for and do…

Answer 13

Simplifying them

Question 14

What helps with solving square roots?

Answer 14

factoring tree

Question 15

How to distinguid what type of polynomial?

Answer 15

Look at the largest degree (n)

Question 16

What caluclator function makes finding f(x) easier?

Answer 16

Crtl =

Question 17

What is an end behavior?

Answer 17

How does the end arrows of a grpah look like

Question 18

What determines the ned behavior?

Answer 18

Degree and sign of the leading coefficient

Question 19

What makes a plolynomail?

Answer 19

• monomial/sum of monomials
  -exponents are whole #’s not negative or 7/x

Question 20

Solving 2 by 2’s steps…

Answer 20

1. Eliminate a variable by using 1 & 2
   - then use 2&3
2. then solve the newly 2 by 2’s
3. to find out the variable that is left to be solved, plug the variables found in the 2 by 2, in the og equation

Question 21

Factorings, types

Answer 21

1. GCF/ GMF
2. (x₂ + bx +c)
3. DOS… DOC’s
4. Factor by Grouping

Question 22

DOC’s

Answer 22

Difference of cubics

Question 23

DOC ‘s

Answer 23

Difference of squares

Question 24

Finding the vertex in intercept form..

Answer 24

• The formula that gives x-intercepts,
• Find the vertex by x=p+q/2

Question 25

Finding the vertex in standard form…

Answer 25

-b/2a

Question 26

Intercept form

Answer 26

a(x-p)(x-q)

Question 27

Standard from

Answer 27

y=ax² +bx +c

Question 28

Vertex form

Answer 28

a(x-h)² +k
- where (h,k) is the vertex

Question 29

Finding the vertex in intercept form…

Answer 29

p+q/2

Question 30

Multiplying Polynomials

Answer 30

Can use pascal triangle

Question 31

Dividing Polynomials

Answer 31

Synthetic division or Long division