Question

for each graph find (a) AB to the nearest tenth and (b) the coordinates of the midpoint of line AB

Answer 1

In each graph, they give you a line.

For part A, they want you to use the Distance Formula which is:

$\sqrt{(x2 - x1)^{2}+(y2 - y1)^{2}}$

(x2 is supposed to be x sub 2, but I can't put subheadings in the equation tool)

x1, x2, y1, and y2 are the coordinates of the endpoints of the segment.

For part B, they want you to use the Midpoint Formula, which is:

$(\frac{x1 + x2}{2}, \frac{y1 + y2}{2})$

The coordinate pair you get from the Midpoint Formula is your midpoint.

Hope this helps! :)