Answer:
7/4
Explanation:
To find slope you subtract the first y value from the second y value and divide that number by the first x value subtracted from the second x value.
The equation is: 
You can simplify this to: 
Your answer is 7/4 as a fraction and 1.75 as a decimal.
Hope this helps!
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An advantage of the syringe method is that blood appears in the hub when the vein has been entered.