Question

№3. Постройте графики функций

l) у = -3x + 2

2) у = 0,4х - 3

3) y = 4x

4) у = -3,5

Answer 1

Ответ:

$1)y = - 3x + 2 \\ 0 = - 3x + 2 \\ 3x = 2 \\ x = \frac{2}{3} \\ —————— \\ 2)y = 0.4x - 3 \\ 0 = 0.4x - 3 \\ - 0.4x = - 3 \\ x = 7.5 \\ ——————— \\ 3)y = 4x \\ 0 = 4x \\ 4x = 0 \\ x = 0 \\ —————— \\ 4)y = - 3,5 \\ y = 0x - 3,5 \\ y = 0x + ( - 3,5) \\ y = 0x + ( - 3,5),m = 0 \\ y = 0x + ( - 3,5),m = 0,b = - 3,5 \\ m = 0,b = - 3,5$