Question

1. Represente graficamente cada função.


a) y=3x+6

b) y=-x+4

c) y=2x-8

d) y=-x-3

e) y=4x-4

f) y=3x-2

Answer 1

Resposta:

Explicação passo-a-passo:

a)y = 2*(–2) – 1 → y = –4 –1 → y = –5

y = 2*(–1) –1 → y = –2 – 1 → y = –3

y = 2 * 0 – 1 → y = –1

y = 2 * 1 – 1 → y = 2 – 1 → y = 1

y = 2 * 2 – 1 → y = 4 – 1 → y = 3

b)y = (–2)² = 4

y = (–1)² = 1

y = (0)² = 0

y = (1)² = 1

y = (2)² = 4

c)y = (–2)² = 4

y = (–1)² = 1

y = (0)² = 0

y = (1)² = 1

y = (2)² = 4

d)y = 4 * (0,5)4 – 5 * (0,5)3 – 0,52 + 0,5 – 1 = 0,25 – 0,625 – 0,25 + 0,5 – 1 = – 1,155

y = 4 * 04 – 5 * 03 – 02 + 0 – 1 = –1

y = 4 * 14 – 5 * 13 – 12 + 1 – 1 = –2