Unit 1 Jeopardy

Functions/Relations

100

True or false: Domain is the y-value.

 

False

200

Which relation is a function?

a) (-1, 0), (.5, -1), (5, .5), (1, .3)

b) (-3, 2), (3, .2), (3, 5), (2, 3)

c) (5, 6), (6, 5), (4, 5), (6, 7)

a) (-1, 0), (.5, -1), (5, .5), (1, .3)

300

All of the x-values or inputs are called what?

a) Relation

b) Range

c) Domain

d) Function

c. Domain

400

True or false: All circles are functions.

False.

500

What is a function?

Relation where no element in the domain is paired with more than one element in the range.

Function Operations

100

         Solve:

(3x - 8)(8x + 1)? 

24x² - 61x - 8

200

When subtracting a function operation do you change all signs from the right or the left?

The right.

300

      Solve:

(3x - 8) + (8x + 1)

11x - 7

400

 Using f(x)= x+7,  g(x)= x²-2: Evaluate the function operation

                (f * g)(x)= ?

x³ + 7x² - 2x - 14

500

  Using f(x)= x + 7, g(x)= x² - 2

(f-g)(-8)=?

-63

Polynomials

100

4w(-3w² - 9)

-12w - 36w

200

3y(-2y² + 1)

-6y³ + 3y

300

-2q² ( -4q² + 3)

8q4 - 6q²

400

-2(3q² - 9) 

-6q² + 18

500

3f( 3f² - 3f)

9f³ - 9f²

Inverse Functions

100

     Solve:

f(x) = 5 - 3x

y= -1/3x + 5/3

200

3x + 2y = 4

y = 2/3x - 4/3

300

f(x) = 4(x + 9)

y = 1/4x - 9

400

f(x) = 2/3x + 6

y= 3/2x - 9

500

If f(x)= -2x + 5, then f^-1 (x) =?

f^-1 (x) = 5 - x/ 2

Absolute Value

100

l 2x + 6 l = 10

x=2

x=-8

200

6 + l 3x  - 17 l = -4

No Solution.

300

5= 2 l x+3 l - 7

x=3

x=-9

400

4 l 5 + 2x l + 12 = 136

{-18, 13}

500

6+ 8 l 7x + 14 l = 174

{-5, 1}