Beginners Algebra
posted by Melina .
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)

I am going to guess it looks like a straight line.
y = m x + b
to find the slope m
m = (Y2Y1)/(X2X1) for any to points if it really is a line.
take the last two points
m = (26 + 14) / (74) = 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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