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Point Slope Form? Help Please?
Write the point slope form of the line satisfying the given conditions. Then use the point slope fom of the equation to write the slope intercept form of the equation.
Passing through (8,16) and (9,18)
Huh?
2 Answers
- 8 years ago
Find the slope first.
m = (y2 - y1)/(x2 - x1)
m = (18 - 16)/(9 - 8)
m = 2 / 1 = 2
Use one of the points and the slope for the point-slope formula. (I'll use (8,16). You can use either one.)
y - y1 = m(x - x1)
y - 16 = 2(x - 8)
y - 16 = 2x - 16
y = 2x
- Iggy RockoLv 78 years ago
m = (16 - 18)/(8 - 9) = -2/-1 = 2
Likewise, m = (18 - 16)/(9 - 8) = 2
y - 16 = 2(x - 8)
y - 16 = 2x - 16
y = 2x
Likewise,
y - 18 = 2(x - 9)
y - 18 = 2x - 18
y = 2x
