Answer:
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Step-by-step explanation:
I think it's 1.90. I am not fully sure about the answer if it's wrong.
Hi there! The answer is C.
We can find the slope of this line by making y the subject of the equation.

Now we can see that the slope of this line (which is positioned in front of x) is 3/4. Therefore, the slope of any line parallel to this one is 3/4 as well. The answer is C.
The width of the confidence interval is twice the margin of error. The lower bound of the confidence interval is the observed score minus the margin of error;