he graph shows a city's daily rate of use of electricity (in millions of Eilowatts). Estimate the total daily sage of electricity by summing the area of rectangles. Use the left endpoints, then the right endpoints, hen give the average of those esults as the answer. Let the width of each rectangle be 2 hours. 28- 24- 20- 16- 6 12- 8- 4- Midnight 4 A.M. 8AM. Noon 4 PM. 8 P.M. Midnight The estimate of the city's total daily usage of electricity for the given day, found by averaging the estimates using left and right endpoints, is (Round to the nearest whole number as needed.) million kw-hrs. Millio ns ofkilovatt hours

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Coordinate Geometry

Coordinate geometry, also known as analytic geometry or Cartesian geometry in classical mathematics, is a type of geometry that is studied using a coordinate system. Coordinate geometry is a branch of mathematics that describes the position of points on a plane using an ordered pair of numbers called coordinates.