Question #N356
A line in the xy-plane passes through the points $(2, -3)$ and $(5, 6)$. What is the slope of the line?
A. -3
B. -1
C. 3
D. 9
Correct Answer is: C
The slope of a line passing through two points $(x_1, y_1)$ and $(x_2, y_2)$ can be calculated using the formula: $\frac{y_2 - y_1}{x_2 - x_1}$. Plugging in the given points, we get: $\frac{6 - (-3)}{5 - 2} = \frac{9}{3} = 3$.