Plotting Coordinates - Quiz 3   Last unanswered question  Question  Next unanswered question

Question 1 lion

What is the point plotted below?
PIC
a) (4,1)   b) (2,4)
c) (1,4)   d) (4,2)

 

Not correct. Choice (a) is false.
Try again, you have swapped the x  and y  coordinates. The x  coordinate is always first.
Not correct. Choice (b) is false.
Try again, you may have misread the point.
Your answer is correct.
Not correct. Choice (d) is false.
Try again, you have misread the point.
Question 2 lion

What is the point plotted below?
PIC
a) (1.5,-2).   b) (-3.5,1.5).
c) (-2.5,1.5).   d) (1.5,-2.5).

 

Not correct. Choice (a) is false.
Try again, you may have misread the negative number.
Not correct. Choice (b) is false.
Try again, you may have misread the negative number and swapped the x  and y  coordinates.
Not correct. Choice (c) is false.
Try again, you may have swapped the x  and y  coordinates. The x  coordinate is always first.
Your answer is correct.
Question 3 lion

Which of the following plots the point (-2,-1.5)?
a) PIC   b) PIC
c) PIC   d) PIC

 

Your answer is correct.
Not correct. Choice (b) is false.
Try again, this is the point (-2,1.5).
Not correct. Choice (c) is false.
Try again, this is the point (2,-1.5).
Not correct. Choice (d) is false.
Try again, this is the point (-1.5,2).
Question 4 lion

Which set of points are plotted below?
PIC
a) (-3,1), (-2,-3), (-1,3), (0,3), (1,0), (1,2), (2,-1).
b) (-3,1), (-2,-3), (-1,3), (1,-3), (2,1), (3,-1), (3,0).
c) (-3,-2), (-1,2), (0,1), (1,-3), (2,1), (3,-1), (3,0).
d) (-3,2), (-1,-2), (0,1), (1,-3), (2,1), (3,1), (3,0).

 

Not correct. Choice (a) is false.
You have the x  and y  coordinates the wrong way around.
Not correct. Choice (b) is false.
You have some correct and some with the x  and y  coordinates the wrong way around.
Your answer is correct.
You have all seven points correctly stated.
Not correct. Choice (d) is false.
You have the stated first and second last points incorrectly, they should be (-3,-2) and (3,-1).
Question 5 lion

Consider the equilateral triangle plotted below.
PIC
Which one of the following points would be required to add an extra equilateral triangle in the fourth quadrant?
a) (0,2.35).   b) (2,-1)
c)
      V~ -
(2,1 -  3).
  d) (4,2.35).

 

Not correct. Choice (a) is false.
Try again, you are still in the first quadrant and this is not quite equilateral.
Not correct. Choice (b) is false.
Try again, this gives an isosceles triangle, not equilateral.
Your answer is correct.
The height of the triangle is  V~ -
  3  so we must go down   V~ -
2 3  units and      V~     V~ -       V~ 
1 +  3- 2  3 = 1 - 3 .
Not correct. Choice (d) is false.
Try again, you are still in the first quadrant and this is not quite equilateral.