Graph the Line and Give the Domain and the Range $$3 y + 21 = 0$$

question 252

Multiple Choice

Graph the line and give the domain and the range.
- $$3 y + 21 = 0$$

• A) \(\mathrm { D } = \{ - 7 \} , \mathrm { R } = ( - \infty , \infty )\)
• B) \(\mathrm { D } = \{ - 7 \} , \mathrm { R } = ( - \infty , \infty )\)
• C) \(\mathrm { D } = ( - \infty , \infty ) , \mathrm { R } = \{ - 7 \}\)
• D) \(\mathrm { D } = ( - \infty , \infty ) , \mathrm { R } = \{ - 7 \}\)

---

Definitions:

Substrate

The surface or material on or from which an organism lives, grows, or obtains its nourishment, or the reactant upon which an enzyme acts.

RNA Hypothesis

A scientific theory suggesting that RNA, rather than DNA, was the first genetic material to evolve in early life forms.

Polypeptides

Chains of amino acids linked by peptide bonds, which can function independently or as part of a protein.

Alexander Cairns-Smith

A scientist known for his "clay hypothesis" proposing that complex organic molecules could have evolved from clay minerals.