Заполни таблицу, вычисляя значения функции по формуле.

1) * При $x = -7$, $y = -7 + 3 = -4$ * При $x = 0$, $y = 0 + 3 = 3$ * При $x = 0,5$, $y = 0,5 + 3 = 3,5$ * При $y = 13$, $13 = x + 3 \Rightarrow x = 13 - 3 = 10$ 2) * При $x = -3$, $y = 2(-3) - 1 = -6 - 1 = -7$ * При $x = -1$, $y = 2(-1) - 1 = -2 - 1 = -3$ * При $y = 9$, $9 = 2x - 1 \Rightarrow 2x = 10 \Rightarrow x = 5$ * При $y = 8,2$, $8,2 = 2x - 1 \Rightarrow 2x = 9,2 \Rightarrow x = 4,6$ 3) * При $x = 0$, $y = 5(0) + 4 = 4$ * При $x = 1/5$, $y = 5(1/5) + 4 = 1 + 4 = 5$ * При $x = 3$, $y = 5(3) + 4 = 15 + 4 = 19$ * При $y = -6$, $-6 = 5x + 4 \Rightarrow 5x = -10 \Rightarrow x = -2$ 4) * При $x = -5$, $y = -3(-5) + 2 = 15 + 2 = 17$ * При $x = 1/3$, $y = -3(1/3) + 2 = -1 + 2 = 1$ * При $x = 2,5$, $y = -3(2,5) + 2 = -7,5 + 2 = -5,5$ * При $y = -22$, $-22 = -3x + 2 \Rightarrow -3x = -24 \Rightarrow x = 8$ 5) * При $x = -1,5$, $y = -10(-1,5) - 1 = 15 - 1 = 14$ * При $x = -0,3$, $y = -10(-0,3) - 1 = 3 - 1 = 2$ * При $y = -6$, $-6 = -10x - 1 \Rightarrow -10x = -5 \Rightarrow x = 0,5$ * При $y = 4$, $4 = -10x - 1 \Rightarrow -10x = 5 \Rightarrow x = -0,5$ 6) * При $x = -3$, $y = 0,5(-3) + 5 = -1,5 + 5 = 3,5$ * При $x = 2$, $y = 0,5(2) + 5 = 1 + 5 = 6$ * При $x = 20$, $y = 0,5(20) + 5 = 10 + 5 = 15$ * При $y = 4$, $4 = 0,5x + 5 \Rightarrow 0,5x = -1 \Rightarrow x = -2$ 7) * При $x = -5$, $y = (2/5)(-5) - 3 = -2 - 3 = -5$ * При $x = 0$, $y = (2/5)(0) - 3 = -3$ * При $x = 2,5$, $y = (2/5)(2,5) - 3 = (2/5)(5/2) - 3 = 1 - 3 = -2$ * При $y = -7$, $-7 = (2/5)x - 3 \Rightarrow (2/5)x = -4 \Rightarrow x = -4 \cdot (5/2) = -10$ 8) * При $x = -6$, $y = 3/(-6) + 2 = -0,5 + 2 = 1,5$ * При $x = -1$, $y = 3/(-1) + 2 = -3 + 2 = -1$ * При $x = 1$, $y = 3/1 + 2 = 3 + 2 = 5$ * При $y = 1$, $1 = 3/x + 2 \Rightarrow 3/x = -1 \Rightarrow x = -3$ 9) * При $x = -2$, $y = -2/(-2) - 4 = 1 - 4 = -3$ * При $x = -1$, $y = -2/(-1) - 4 = 2 - 4 = -2$ * При $x = 4$, $y = -2/4 - 4 = -0,5 - 4 = -4,5$ * При $y = -5$, $-5 = -2/x - 4 \Rightarrow -2/x = -1 \Rightarrow 2/x = 1 \Rightarrow x = 2$ **Заполненная таблица** 1) $y = x + 3$ | $x$ | $-7$ | $0$ | $0,5$ | $10$ | |-----|------|-----|-------|------| | $y$ | $-4$ | $3$ | $3,5$ | $13$ | 2) $y = 2x - 1$ | $x$ | $-3$ | $-1$ | $5$ | $4,6$ | |-----|------|------|-----|-------| | $y$ | $-7$ | $-3$ | $9$ | $8,2$ | 3) $y = 5x + 4$ | $x$ | $-2$ | $0$ | $1/5$ | $3$ | |-----|------|-----|-------|-----| | $y$ | $-6$ | $4$ | $5$ | $19$ | 4) $y = -3x + 2$ | $x$ | $-5$ | $1/3$ | $2,5$ | $8$ | |-----|------|-------|-------|-----| | $y$ | $17$ | $1$ | $-5,5$ | $-22$ | 5) $y = -10x - 1$ | $x$ | $-1,5$ | $-0,3$ | $0,5$ | $-0,5$ | |-----|--------|--------|-------|--------| | $y$ | $14$ | $2$ | $-6$ | $4$ | 6) $y = 0,5x + 5$ | $x$ | $-3$ | $-2$ | $2$ | $20$ | |-----|------|------|-----|------| | $y$ | $3,5$ | $4$ | $6$ | $15$ | 7) $y = \frac{2}{5}x - 3$ | $x$ | $-10$ | $-5$ | $0$ | $2,5$ | |-----|-------|------|-----|-------| | $y$ | $-7$ | $-5$ | $-3$ | $-2$ | 8) $y = \frac{3}{x} + 2$ | $x$ | $-6$ | $-3$ | $-1$ | $1$ | |-----|------|------|------|-----| | $y$ | $1,5$ | $1$ | $-1$ | $5$ | 9) $y = -\frac{2}{x} - 4$ | $x$ | $-2$ | $-1$ | $2$ | $4$ | |-----|------|------|-----|-------| | $y$ | $-3$ | $-2$ | $-5$ | $-4,5$ |