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The slope of this line and the unit rate are the same.Price of Cookies at Bakery141210Find the unit ratefor the number ofcookies per dollar.8Number of CookiesCO4 2.2 cookies$[?]2 4 6 8 10 12 14Price ($)

The slope of this line and the unit rate are the same.Price of Cookies at Bakery141210Find-example-1
User SimonDepelchin
by
2.5k points

1 Answer

18 votes
18 votes

The first step is to calculate the slope of the line from the graph. The formula for calculating slope is expressed as

slope = (y2 - y1)/(x2 - x1)

where

y2 and y1 are the y cordinates of selected final and initial points on the line

x2 and x1 are the x cordinates of the selected final and initial points on the line

By selecting final and initial points on the line, we have

when x1 = 1, y1 = 2

when x2 = 2, y2 = 4

By substituting these values into the formula, we have

slope = (4 - 2)/(2 - 1) = 2/1 = 2

Thus, the unit rate is 2

The answer is

2 cookies/$1

User Hyperman
by
3.0k points