Question

procedures and problem s using slope in exercises 7 and has the indicated slope. 7. (a) $m = \frac{2}{3}$ (b) $m$ is undefined. (c) $m=-2$ estimating slope in exercises 9 slope of the line.

Explanation:

Step1: Recall slope - line relation

Positive slope means rising line, negative slope means falling line, undefined slope means vertical line.

Step2: Match slopes to lines

(a) $m = \frac{2}{3}$ is positive, so it's $L_2$. (b) $m$ undefined is vertical, so it's $L_3$. (c) $m=-2$ is negative, so it's $L_1$.

Answer:

(a) $L_2$, (b) $L_3$, (c) $L_1$