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Posted by on Friday, November 26, 2010 at 7:18pm.

For each table, find the output value that corresponds to an input value of 0.

Chart;

Input Output;
-5 (negative) 22 (positive)
-2 (negative) 10 (positive)
1 (positive) -2 (negative)
4 (positive) -14 (negative)
7 (positive) -26 (negative)

  • Beginners Algebra - , Friday, November 26, 2010 at 7:26pm

    I am going to guess it looks like a straight line.

    y = m x + b

    to find the slope m

    m = (Y2-Y1)/(X2-X1) for any to points if it really is a line.
    take the last two points

    m = (-26 + 14) / (7-4) = -12/3 = -4
    put in a point to get b
    y = -4x + b
    22 = -4(-5) + b
    b = 2
    so if it is a straight line then
    y = -4x + 2
    check that in the other points to make sure they all lie on the line
    then for x = 0
    y = 2

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