graphing

I am having tuble with this problem:
Graph the line given by the formula y=2x+3. Using the graph, find:
The value of y corresponding to the value of x equal to −1; 2; 3; 5

I don't really know how to find the answer can you guys give me the answer and explain how you got it

Thanks so much
:)

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  1. I also have another question:

    Write the equation of the line parallel to the given line and passing through the given point.

    y=6 through (3,4)

    this is what i did and i got it wrong

    4=24+b
    -20=b
    y=6+(-20)

    i did the same way of solving for this problem
    y=x+5 through (8,1)
    1=8+b
    b=-7
    y=x+(-7)
    and it's correct

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  2. sory typo in top
    this is what i did and i got it wrong

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  3. y=2x+3.
    y(-1) = 2(-1)+2 = -2+3 = 1
    y(1) = 2(1)+3 = 2+3 = 5
    and so on

    The line y=6 is a horizontal line.
    A horizontal line through (3,4) is y=4

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