Foundation June 2022 Unit 2 Q12
12.
(a) B is the midpoint of the line AC.
Find the coordinates of C. [2]
Find the coordinates of C. [2]
C (…………… , ……………)
(b) A and B are two vertices of a right-angled triangle.
Point D is to be plotted on the grid above so that the triangle ABD is a right-angled triangle.
The \(x\)-coordinate of D is negative.
Give the coordinates of a possible position of the point D that can be plotted on the grid above. [2]
Point D is to be plotted on the grid above so that the triangle ABD is a right-angled triangle.
The \(x\)-coordinate of D is negative.
Give the coordinates of a possible position of the point D that can be plotted on the grid above. [2]
D (…………… , ……………)
| Scheme | Marks | Comments |
|---|---|---|
| (1, 0) | B2 | Award B1 for one of the following:
|
| Scheme | Marks | Comments | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(-1, 6) OR (-2,7) | B2 | Award B2 for any point that satisfies the conditions e.g. (-1.5, 6.5) Award B1 for one of the following:
 |
Notes
In the original, the crosses and dotted line at negative x (the B2 answers) are green and the other crosses and dotted lines are red. Here they are shown in black and dark grey.