Question

Does anyone know what this is

Answer 1

Answer:

c

Step-by-step explanation:

they have to have the same slope to be parallel

Answer 2

Answer:

$m = -3$

Step-by-step explanation:

-To determine the slope of the red line on the graph, you need the slope formula:

$m = \frac{y_{2} - y_{1}}{x_{2}- x_{1}}$

-Since the red line shows it's decreasing, then the number will be negative.  So, l picked $(0,3)$ and $(1,0)$ for the slope formula:

$m = \frac{0 - 3}{1 - 0}$

Then, solve:

$m = \frac{0 - 3}{1 - 0}$

$m = \frac{-3}{1}$

$m = -3$

so, the slope is $-3$.