Question

Please Help me. Also if you could show your work thatd be great.

Answer 1

Answer:

3) $all \: real \: numbers$, $( - \infty , \infty )$, or $- \infty \leqslant x \leqslant \infty$ (same thing)

4) $- \infty < y < 0$ or $( - \infty ,0)$ (same thing)

5) $-2$ or $(0, -2)$ (same thing)

Step-by-step explanation:

3) Domain represents the amount of $x$-values in a function. The image shows that the function's arrows point in both directions (right and left), infinitely, so the domain would be $all \: real \: numbers$, $( - \infty , \infty )$, or $- \infty \leqslant x \leqslant \infty$(same thing).

4) Range represents the amount of $y$-values in a function. The function goes downward forever ($- \infty < y$) by the indication of an arrow and halts just under the y-axis ($y < 0$). After combining these two inequalities, you see that the range is $- \infty < y < 0$ or $( - \infty ,0)$ (same thing).

5) The $y$-intercept is where the function crosses the $y$-axis. In this function, the $y$-intercept is $-2$ or $(0, -2)$ (same thing).