Answer
The slope of the line containing the two given points is $\frac{3}{2}$.
Work Step by Step
Find the slope $m$ using the formula $m=\dfrac{y_2-y_1}{x_2-x_1}$ to have:
$\\\\\\m=\dfrac{9-6}{0-(-2)}
\\\\\\m=\dfrac{3}{0+2}
\\\\\\m=\dfrac{3}{2}$