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natta225 [31]
3 years ago
8

What is an equation of the line in point-slope form? How can the point-slope form be written in function notation?

Mathematics
1 answer:
harina [27]3 years ago
6 0
The equation of a line in point slope form = y - y_1 = m(x - x_1)

To put y - y_1 = m(x - x_1) into function notation, we need to get y by its self.
Lets say we had a point (2,2) and a slope of 3. Ok, now that we have our point and slope, lets turn point slope form into  function notation.

y - y_1 = m(x - x_1)
y - 2 = 3(x - 2)
y - 2 = 3x - 6
y = 3x - 6 + 2
y = 3x - 8
Change the y to f(x)
f(x) = 3x - 8      <-----Function notation. 
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