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The graph below shows the price, y, in dollars, of different amounts of pounds of cheese, x: A graph titled Cheese Prices shows Number of Pounds on x axis and Price in dollars on y axis. The scale on the x axis shows numbers from 0 to 12 at increments of 2, and the scale on the y axis shows numbers from 0 to 72 at increments of 12. A straight line joins the ordered pairs 0, 0 and 12, 72 Which equation best represents the relationship between x and y? y = x + 6 y = 12x y = x + 12 y = 6x

User Insarov
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2 Answers

4 votes

The answer to the question is y=6x

User Niklaus Wirth
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7.8k points
5 votes
Since the line goes through (0, 0), it can be described by
y = kx

You are given the point (12, 72), so you know
72 = 12k
6 = k . . . . . . . divide by 12

Then the equation of the line is ...
y = 6x
User Sebastian Boldt
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8.5k points