The vertical interval joining $A$A $\left(-2,2\right)$(−2,2) and $B$B $\left(-2,-3\right)$(−2,−3) has been graphed on the number plane. Find the length of the interval.
The horizontal interval joining $A$A $\left(-4,5\right)$(−4,5) and $B$B $\left(-7,5\right)$(−7,5) has been graphed on the number plane. Find the length of the interval.
The points $P$P $\left(-3,-1\right)$(−3,−1), $Q$Q $\left(-3,-4\right)$(−3,−4) and $R$R $\left(2,-4\right)$(2,−4) are the vertices of a right-angled triangle, as shown on the number plane.
Consider the interval $AB$AB on the graph.