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Slope intercept form is y = mx + b, with m as slope and b as y-intercept. In this case, m = 1 and b = -9. Slope = 1 (or 1.000 as a decimal)
You need either a point and the slope of the line or two points. Then you use the point slope form of the line or the slope intercept form to write the lines.A given point has an infinite number of lines going through it, that is why you need more information.
7y = - 14 x + 49 divide with 7 on both sides , then we get y = - 2 x + 7 which is the form y = m x + c ( slope intercept form ) where m = slope and c = intercept so slope m = -2 for given line
To find the slope intercept a pair of coordinates are needed in the form of (x1, y1) and (x2, y2) of which none have been given that makes sense.
When formatting the equation of a given line into slope-intercept form.