Chapter 4 Review (8th)

Functions

100

Is the following relation a function: (1, 0), (2, 2), (3, 4)?

Yes

200

Is the following relation a function: (1, 1), (4, 1), (5, 2), (1, 2), (2, 5)?

No

300

List the domain and range of this set of ordered pairs:

(1, 1), (4, 1), (5, 2), (1, 2), (2, 5)?

Domain: {1,4,5,2}

Range: {1,2,5}

400

Draw a graph that does not represent a function.

Answers will vary

500

If f(x) = 6x and g(x) = 4 +2(x)

Find f(3) and g(6) 

f(3) = 6(3) = 18

g(6) = 4 + 2(6) = 16

Exponents

100

Simplify as a single power:

2^2 * 2^5

(2)^7

200

Simplify:

(-10)^10/(-10)^4

(-10)^6

300

Rewrite with a positive exponent: 3^-4

1/3^4

400

Simplify to a single power: (4²)³

What is 4⁶

500

4^3 xx 4^0

4³

Scientific Notation

100

50,000 is standard form. What is it in Scientific?

5 x 10⁴

200

.0007403 is standard form. What is Scientific Notation?

7.403 x 10^-4

300

2.6 x 10⁶ is in Scientific Notation. What is it in Standard form?

2,600,000

400

1.584 x 10⁸ is -158,400,000

True

500

4.56002 x 10¹⁴ is in Scientific Notation. What is it in Standard form?

456,002,000,000

Set of Real Numbers

100

Name the set or sets this number belongs to:

11

N,W,Z,Q,R

200

Name the set or sets this number belongs to:

pi

I, R

300

Name the set or sets this number belongs to:

square root of 30

I,R

400

Name the set or sets this number belongs to:

475/325

R,Q

500

Name the set or sets these numbers belong to:

0

-13

W,Z,Q,R

Z,Q,R

Pythagorean Theorem

100

a = 3, b = 4 what is the value of c?

c = 5

200

a = 6, b = 8 what is the value of c?

c = 10

300

a = 9, c = 15 what is the value of b?

b = 12

400

Do the sides 5 cm, 10 cm, and 15 cm create a right triangle?

No

500

A square exercise mat measures 40 in. by 40 in. What is the measure of the diagonal of the mat?

56.6 in.