Answer
$1.4$
Work Step by Step
First you have to transcribe the formula so that it equals 0:
$4x + 3y = 10$
$4x + 3y - 10 = 0$
You can read in the formula that:
$A = 4$
$B = 3$
$C = -10$
You can read in the coordinates that:
$x_{1} = 2$
$y_{1} = 3$
Enter this information in the given formula:
$\frac{|Ax_{1} + By_{1} + C|}{\sqrt {A^{2} + B^{2}}}$
$\frac{|4 * 2 + 3 * 3 - 10|}{\sqrt {4^{2} + 3^{2}}} = 1.4$