Question

Identify the graph that represents the given data, showing the relationship between the number of buildings and the number of security cameras.

No. of buildings (x)	4	7	9	12
No. of security cameras (y)	8	14	18	24

• A. y = 3x
• B. y = 5x
• C. y = 2x
• D. None of the above

Answer 1

The correct option is C y = 2x

No. of buildings (x)	4	7	9	12
No. of security cameras (y)	8	14	18	24

Let us plot the number of buildings along the x axis and the number of security cameras along the y axis.


From the table, we can see that for each value of the number of buildings, number of security cameras are doubled.

So, the equation will be $y=2x$