Tv circuit has 30 large-screen televisions in a warehouse in erie and 60 large-screen televisions in a warehouse in pittsburgh. thirty-five are needed in a store in blairsville, and 40 are needed in a store in youngstown. it costs $19 to ship from pittsburgh to blairsville and $23 to ship from pittsburgh to youngstown, whereas it costs $21 to ship from erie to blairsville and $26 to ship from erie to youngstown. how many televisions should be shipped from each warehouse to each store to minimize the shipping cost? hint: if the number shipped from pittsburgh to blairsville is represented by x, then the number shipped from erie to blairsville is represented by 35 − x.

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explanation

the graph has a slope of 1/3 because each time you move up 1, you go to the right 3. so, slope = rise/run = 1/3. we can cross choice a off the list since we want a slope of 3, rather than 1/3.

the first table shown has a slope of -3. this is because the rise is -6 and the run is 2, so slope = rise/run = -6/2 = -3. note how x increases by 2 each time (run) and y drops by 6 each time (rise). choice b can be eliminated.

the second table has a slope of 3. each time x goes up by 1, the y values increase by 3. slope = rise/run = 3/1 = 3. alternatively you can use the slope formula to prove that the slope is 3 here. use any two rows of values to generate the two points. choice c is one of the answers

the third table also has a slope of 3. let's use the slope formula to prove as such. i'm going to use the first two rows of the table. so i'll use the two points (2,1) and (5,10)

m = slope

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

m = (10-1)/(5-2)

m = 9/3

m = 3 so we get a slope of 3

choice d is the other answer

12cm

the answer is d

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day