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cbarajas
Nov 10, 2010, 07:57 PM
what is an equation for the following table x 5 6 7 8 9
y 5 7 9 11 13

Unknown008
Nov 10, 2010, 11:41 PM
Can you find the gradient of this line?
If so, then use:

\frac{y - y_1}{x - x_1} = m

where m is the slope or gradient of the line,
y1 being one y coordinate and x1 being the corresponding x coordinate.

cbarajas
Nov 11, 2010, 11:01 AM
2x-5=y

Unknown008
Nov 11, 2010, 11:28 AM
Yes, that's it! Well done :)