Plotting Coordinates-Quiz 2    Question

Question 1

What is the point plotted?

a)		(5,2)		b)		(3,5)
c)		(2,5)		d)		(5,3)

 

Not correct. Choice (a) is false.

Try again, you have swapped the and coordinates. The 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

What is the point?

a)		(2.5,-2).		b)		(2.5,-1).
c)		(-1,3.5).		d)		(-1,2.5).

 

Not correct. Choice (a) is false.

Try again, you may have misread the negative number.

Your answer is correct.

Not correct. Choice (c) is false.

Try again, you may have misread the positive number and swapped the and coordinates.

Not correct. Choice (d) is false.

Try again, you may have swapped the and coordinates. The coordinate is always first.

Question 3

Which of the following plots the point (-2,-3.5)?

a)				b)
c)				d)

 

Not correct. Choice (a) is false.

Try again, this is the point (-2,3.5).

Not correct. Choice (b) is false.

Try again, this is the point (2,-3.5).

Not correct. Choice (c) is false.

Try again, this is the point (-3.5,2).

Your answer is correct.

Question 4

Consider the three points plotted. What extra point would be required to turn this into a parallelogram?

a)		(-1,0).		b)		(0,-1).
c)		(-3,0).		d)		There is not enough information available to decide.

 

Your answer is correct.

The line between (-2,-2) and the new point needs to have gradient 2 and the line between (2,1) and the new point has gradient 1/3.

Not correct. Choice (b) is false.

Try again, you have swapped the and coordinates.

Not correct. Choice (c) is false.

Try again, you need the coordinate to be larger.

Not correct. Choice (d) is false.

Try again, look at the gradient of the existing lines.

 

Question 5

 

 

Consider the scatterplot below and select the data which it most accurately represents.

a)		Temperature 1.0 1.2 1.4 1.6 1.8 2.0 Converted sugar 8.1 8.5 9.5 8.6 9.3 10.1
b)		Converted sugar 8.1 8.5 9.5 8.6 9.3 10.1 Temperature 1.0 1.2 1.4 1.6 1.8 2.0
c)		Temperature 1.0 1.1 1.2 1.3 1.5 1.6 1.7 1.8 2.0 Converted sugar 8.1 7.8 8.5 9.8 8.9 8.6 10.2 9.3 10.1
d)		t(∘C) 8.1 8.5 9.5 8.6 9.3 10.1 C(gms) 1.0 1.2 1.4 1.6 1.8 2.0

 

Your answer is correct.

The horizontal axis, Temperature, represents the independent variable which is the first row of the table and the vertical axis represents the dependent variable, the second row of the table.

Not correct. Choice (b) is false.

Try again, it is usual to put the first row as the independent variable. Temperature should be first and then Converted Sugar.

Not correct. Choice (c) is false.

Try again, you have more data than the plot provides, and some missing data.

Not correct. Choice (d) is false.

Try again, you have the data the wrong way around and the labels should be more informative.