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The graph shows the prices of different numbers of bushels of corn at a store in the current year. The table shows the prices of different numbers of bushels of corn at the same store in the previous year. A graph shows Number of Bushels on x-axis and Price of Corn in dollars on y-axis. The x-axis scale is shown from 0 to 21 at increments of 3, and the y-axis scale is shown from 0 to 168 at increments of 24. A straight line joins the ordered pairs 3, 24 and 6, 48 and 9, 72 and 12, 96 and 15, 120 and 18, 144. Previous Year Number of Bushels Price of Corn (dollars) 3 21 6 42 9 63 12 84 Part A: Describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. (5 points) Part B: How many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? Show your work. (5 points)
@TheSmartOne please come back and help
\part \a \the rate of change for the current year is the slope of the graph |dw:1447417761747:dw|
= rise / run
Can you Please Explain The Answer for Part A and Part B please
Part A :- The rate of change of a bushel of corn for the current year is found by measuring the slope of the line in the graph for the current year . This is ..... Can you find the slope ( rise/ run ) ? Hint:- the rise is 144
I have to go for a short time
ok so thats the answer for part A
Well you have to work out the slope to finish part A.
ok can you explain the ANSWER for part A And par B
i have explained part A all you have to do now is to find the length of the 'run' part in the graph to find the slope The current rate of change is 144 divided by the run.
Just check the picture v.jpg
ok how am i going to divide it by the run if i dont have the run
you can read the run from the graph
what is the distance between 0 and 18?
18 - 0 = 8?
oh no no no that 18
OK? we start from 0 and end on 18 so the run = 18
so the current rate of change of price of corn = 144/18 = 8
so that is the final part of part A.
so our answer is 8
ok so now can you write the full answer out for me for part A and B please
For part B - in previous year the price of one bushel works out as 21 / 3 as 3 bushels cos 21 dollars. So the difference in the price f a bushel is 8-7 = 1