Given two points $(x_1,y_1)$ and $(x_2,y_2)$ the slope, $m,$ of the straight line passing through both points is given by

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

For example, the slope of the line passing though $(3,6)$ and $(4,8)$ is $m=\frac{8-6}{4-3}=2.$

Fill in the blanks: The slope of the line passing through $(-1,4)$ and $(2,7)$ is