Question 78885
Your answer is correct!
The distance (d) between the points (2, 0) and (-5, 0) is found by:
{{{d = sqrt((x[2]-x[1])^2+(y[2]-y[1])^2)}}} here: {{{x[1] = 2}}}, {{{y[1] = 0}}}, {{{x[2] = -5}}}, and {{{y[2] = 0}}} Making the appropriate substitutions, we get:
{{{d = sqrt((-5-2)^2+(0-0)^2)}}}
{{{d = sqrt((-7)^2)}}}
{{{d = sqrt(49)}}}
{{{d = 7}}} We discard the negative answer as distance is a positive value.