You can tell if something is a function by checking to see if a vertical line will intersect at one spot more than once. If it does, it is not a function.

3 0

2 years ago

100 POINTSbrainlest to the person who get it right

Zina [86]

Answer:

[1] x² - 4/2x - 4

3² - 4/2 × 3 - 4 = 9 - 4/2
5/2

[2] 4 - 3x/2x + 4

4 - 3 × 2/2 × 2 + 4 = 2/8
1/4

[3] x²/2x² - 2

0²/2 × 0² - 2
0

[4] x² + 5/5 - x

- 2² + 5/5 + 2 = 4 + 5/7
9/7

[5] - x³/x² - 4

- 1³/-1² - 4 = - 1/1 - 4
1/3

[6] x + 3/x³ - 1

- 3 + 3/- 3³ - 1 = 0/- 27 - 1
0

[7] 5 - x²/3x²

5 - (- 4)²/3 × - 4² = 5 - 16/3 × 16
- 11/48

[8] - 2x + 6/2x³ - 3

- 2 × - 2 + 6/2 × - 2³ - 3
10/- 19

[9] 4x²/- 3x² + 1

4 × 1²/- 3 × 1² + 1 = 4/- 2
- 2

[10] 4x - 1/6x + 1

4 × 3 - 1/6 × 3 + 1
11/19

[11] x² - 1/x² + 1

1² - 1/1² + 1 = 0/2
0

8 0

2 years ago

Read 2 more answers

Someone pls help with question 2

kirza4 [7]

Answer:

Step-by-step explanation:

5 0

2 years ago

Pls help, was sick the day I had to learn this

7nadin3 [17]

1. 13/3m
2. 24m to the 2nd power over 3 m
3.72 m to the 2nd power -11 over 3m
4.-16/3m

4 0

3 years ago