Linear Equations II
Hong Kong
Stage 1 - Stage 3
The Midpoint of an Interval
Interactive practice questions
Which of the following formulae correctly describes the coordinates of the midpoint of the points $\left(x_1,y_1\right)$(x1,y1) and $\left(x_2,y_2\right)$(x2,y2)?
$\left(x_2+x_1,y_2+y_1\right)$(x2+x1,y2+y1)
A
$\left(\frac{x_2+x_1}{2},\frac{y_1-y_2}{2}\right)$(x2+x12,y1−y22)
B
$\left(\frac{x_1-x_2}{2},\frac{y_1-y_2}{2}\right)$(x1−x22,y1−y22)
C
$\left(\frac{x_2+x_1}{2},\frac{y_2+y_1}{2}\right)$(x2+x12,y2+y12)
D
Easy
< 1min
$M$M is the midpoint of Point $A$A $\left(5,2\right)$(5,2) and Point $B$B $\left(1,6\right)$(1,6).
Easy
2min
Consider the midpoint of the interval joining $A$A$\left(5,7\right)$(5,7) and $B$B$\left(2,-6\right)$(2,−6).
Easy
1min
$M$M is the midpoint of Point $A$A $\left(-1,1\right)$(−1,1) and Point $B$B $\left(-5,-5\right)$(−5,−5).
Easy
1min
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