Question

Does the table below show a linear relationship between total cost of

balloons in dollars and the number of balloons purchased?

Answer 1

YES, because the points fall in a straight line when plotted on a graph.

Explanation:

To graph these numbers we can take two of the points and put them into two point form and then convert that to slope intercept form.

(2,6) and (4,12)

(y-y1) = [(y2-y1)/(x2-x1)]*(x-x1)

y-6 = [(12-6)/(4-2)]*(x-2)

y = 3x+4

Answer 2

A yes

Explanation: