Coordinates & Graphs: Medium Test 2

15 questions · 15 minutes

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Three corners of a parallelogram are marked. The fourth corner is to the right of R. What are its coordinates?
What is the area of this triangle, in squares?
Three corners of a square are marked, and the square stands on one of its corners. What are the coordinates of the missing fourth corner?
A rectangle has corners at (2, 1), (8, 1), (8, 5) and (2, 5). What is its area, in squares?
What are the coordinates of the midpoint of the diagonal AC of this rectangle?

When completing a rectangle, plot the three given points first. The fourth is then obvious from the shape rather than from calculation.
On a conversion graph, draw a faint line across from the axis and down to the other. Reading by eye alone invites error.