7.7A Activity

Which graph best represents the relationship between x and y shown in the table?

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Which equation best represents the relationship between x and y in the graph?

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Rob is buying shirts at his favorite sports store. The store is having a huge sale, so Rob can get each shirt for only $2. Rob also has a coupon for $5 off his total purchase.

Which equation can be used to find y, the total cost to buy x shirts?

•  $y=2x+5$  

•  $y=2x-5$  

•  $y=5x-2$  

•  $y=5x+2$  

The table shows the cost of a trophy, y, with the amount of letters, x, engraved on the trophy. Based on the information in the table, which equation can be used to model the relationship between x and y?

• $y=6.5x$

• $y=-x+2$

• $y=0.75x+5$

• $y=-x+0.75$

Which equation best represents the relationship between x and y in the graph?

• $y=-x+2$

• $y=2x-2$

• $y=x+2$

• $y=2x+2$

Jenny can run a mile in six and a half minutes. Which equation can be used to find y, the total amount of minutes it takes Jenny to run x miles?

• $y=x+6.5$

• $y=0.5x+6$

• $y=6.5x$

• $y=-6.5x$

Which graph best represents the relationship between x and y shown in the table?

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Which table contains only values that satisfy the equation

 $y=-2x+14$  ?

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Which equation represents the relationship between the x-values and the y-values in the table?

• $y=x+13$

• $y=2x+12$

• $y=14x$

• $y=12x+4$

In the morning, the snow build-up from a storm during the night was 2 inches high. As the sun came out, the snow began to melt 1 inch for every x hour. Which equation can be used to find the total amount of time, y, it will take for the snow to melt?

• $y=-x+2$

• $y=x+2$

• $y=-2x+1$

• $y=2x+1$