Question

What are the two correct answers?

Answer 1

y ≥ 1 or y ≤ -2.4

Step-by-step explanation:

| 10y + 7 | ≥ 17

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`\sf {Apply\:absolute\:rule}:\quad \mathrm{If}\:|u|\:\ge \:a,\:a\: > \:0\:\mathrm{then}\:u\:\le \:-a\:\quad \mathrm{or}\quad \:u\:\ge \:a`

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• 10y + 7 ≤ -17

• 10y ≤ -17 - 7

• 10y ≤ -24

• y ≤ -2.4

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• 10y + 7 ≥ 17

• 10y ≥ 10

• y ≥ 1