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What is the equation of the line passing through the points (-1,3 and (4,8)?
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We'll recall the formula that gives the equation of a line that passes through a point and it has a known slope:
y - y1 = m(x - x1), where m is the slope
We'll recall the formula that gives the value of a slope of a line that passes through two points:
m = (y2-y1)/(x2-x1)
We'll identify the coordinates:
We'll plug in the identified coordinates:
y - 5 = (10-5)(x+2)/(3+2)
y - 5 = x + 2
y = x + 2 + 5
The equation of the line that passes through the given points is: y = x + 7
Posted by giorgiana1976 on July 30, 2011 at 1:46 AM (Answer #1)
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