Question

Find the midpoint of the line segment joining the points r(1,4) s(-3,7)

Answer 1

Formula for mid point.
(x1/2+x2/2 , y1/2+ y2/2)

Mid point=
(1/2+ (-3)/2 , 4/2+ 7/2)
(-2/2 , 11/2)
(-1, 5.5)

Answer 2

We can find the midpoint by finding the average between the two points.

We have r(1, 4) and s(-3, 7).

The formula for midpoint is $\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}$.

Let's plug in 1 and -3 in $x_1 + x_2$ and plug in 4 and 7 in $y_1+y_2$.

$\frac{1+(-3)}{2}, \frac{4+7}{2}$

Simplify the top numbers so now we have:

$\frac{-2}{2}, \frac{11}{2}$

Simplify even further and now we have:

-1, 11/2

So the midpoint of the line segment is (-1, 11/2).