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ivolga24 [154]
3 years ago
13

The table shows values for points on the graph of a linear function.

Mathematics
1 answer:
Anna [14]3 years ago
8 0
(x2-x1)/(y2-y1)

(1+2)/(1-13)


3/-12


the slope of the graph is -1/4
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To find out how much each book cost first we will subract to find out how many 2 books cost. Then we will divide. last but not least we will check our wok. Lets do it:- 

30 - 8.95 = <span>21.05
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CHECK OUR WORK:-

13.80 + 7.25 = 21.05
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Now lets divide:-

13.80 ÷ 2 = 6.90
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CHECK OUR WORK:-

6.90 × 2 = 13.80
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