Question

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Answer 1

Answer: 0.5

Step-by-step explanation:

Given

Line passes through $(-10,-30), (0,-25), (10,-20), \text{and}\ (20,-15)$

The slope of the line is

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Taking any two points: (0, -25) and (20,-15)

Slope is

$\Rightarrow m=\dfrac{-15-(-25)}{20-0}=\dfrac{10}{20}\\\\\Rightarrow m=0.5$