Question

The distance AB=?Round to the nearest tenth Hint:use distance formula

Answer 1

Given the figure, we can deduce the following information:

Point A = (-1,2)

Point B = (1,-2)

To determine the distance AB, we first let:

`\begin{gathered} (x_1,y_1)=(-1,2) \\ (x_2,y_2)=(1,-2) \end{gathered}`

Next, we plug in what we know into the distance formula:

`\begin{gathered} d=√((x_2-x_1)^2+(y_2-y_1)^2) \\ d=√((1-(-1))^2+(-2-2)^2) \\ Simplify \\ d=√(4+16) \\ d=√(20) \\ d=4.5 \end{gathered}`

Therefore, the answer is: 4.5