Question

Пж помогите пожалуйста помогите

Answer 1

Відповідь:

1) f(-2) = -8

2) f(-1) = -6

3) x = 0

4) f(1) = -2

5) f(2) = 0

6) x = 3

7) f(4) = 4

Пояснення:

1) f(-2) = 2 * (-2) - 4

f(-2) = -4 - 4

f(-2) = -8

2) f(-1) = 2 * (-1) - 4

f(-1) = -2 - 4

f(-1) = -6

3) 2x - 4 = -4

2x = -4 + 4

2x = 0|:2

x = 0

4) f(1) = 1 * 2 - 4

f(1) = 2 -4

f(1) = -2

5) f(2) = 2 * 2 - 4

f(2) = 4 - 4

f(2) = 0

6) 2x - 4 = 2

2x = 2+4

2x = 6|:2

x = 3

7) f(4) = 2 * 4 - 4

f(4) = 8 - 4

f(4) = 4