tonymartinez
tonymartinez tonymartinez
  • 23-01-2015
  • Mathematics
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Complete the equation of the graphed linear function in point-slope form.



y – (–2) = ? (x – ?)

Complete the equation of the graphed linear function in pointslope form y 2 x class=

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naǫ
naǫ naǫ
  • 24-01-2015
The point-slope form:
[tex]y-y_1=m(x-x_1)[/tex]
m - slope
x₁, y₁ - the coordinates of a point

It passes through the points (1,-2) and (2,2).
[tex](1,-2) \\ x_1=1 \\ y_1=-2 \\ \\ (2,2) \\ x_2=2 \\ y_2=2 \\ \\ m=\frac{y_2-y_1}{x_2-x_1}=\frac{2-(-2)}{2-1}=\frac{2+2}{1}=4[/tex]

[tex]\boxed{y-(-2)=4(x-1)}[/tex]
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