QUESTION IMAGE
Question
fill in the table using this function rule.
y = -5x - 2
| x | y |
| -1 | □ |
| 0 | □ |
| 1 | □ |
| 2 | □ |
Step1: 代入x=-1计算y
将\( x = -1 \)代入\( y = -5x - 2 \),得\( y = -5\times(-1) - 2 = 5 - 2 = 3 \)。
Step2: 代入x=0计算y
将\( x = 0 \)代入\( y = -5x - 2 \),得\( y = -5\times0 - 2 = 0 - 2 = -2 \)。
Step3: 代入x=1计算y
将\( x = 1 \)代入\( y = -5x - 2 \),得\( y = -5\times1 - 2 = -5 - 2 = -7 \)。
Step4: 代入x=2计算y
将\( x = 2 \)代入\( y = -5x - 2 \),得\( y = -5\times2 - 2 = -10 - 2 = -12 \)。
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| x | y |
|---|---|
| 0 | -2 |
| 1 | -7 |
| 2 | -12 |