suppose that it costs $12 to place a classified advertisement in the newspaper, plus $6 a line. Then, the cost to place an ad x lines long is given by y dollars where y=6x+12.
Express as an ordered pair the fact that a 16 line ad costs $108.

Question

suppose that it costs $12 to place a classified advertisement in the newspaper, plus $6 a line. Then, the cost to place an ad x lines long is given by y dollars where y=6x+12.
Express as an ordered pair the fact that a 16 line ad costs $108.

mathmale · Answer

In an "ordered pair," the independent variable comes first, followed by the second.
The cost of your ad depends upon the number of lines, right?
So:  In this specific example, what is the value of the indep't variable?  of the dep't var.?

anonymous · Answer

I don't know

anonymous · Answer

an ordered pair is written in this form: (x,y)
your ad is 16 lines en costs 108.
the number of lines is equal to x

ranga · Answer

y=6x+12
If you put x = 16, the y value computes to 108.
Ordered pair is (x, y)
Therefore, (16, 108)

anonymous · Answer

it says now express aa an ordered pair the fact that an ad costing $18 is one lines long

ranga · Answer

x = 1  and y = 18.  Therefore, (1, 18)