carsonspitzer1p5p1g2
carsonspitzer1p5p1g2 carsonspitzer1p5p1g2
  • 06-02-2019
  • Mathematics
contestada

Write an equation of the line that passes through a pair of points (-3,-1), (2,2)

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MrsStrong
MrsStrong MrsStrong
  • 07-02-2019

Answer:

[tex]y=3x-4[/tex]

Step-by-step explanation:

To write the equation of a line, find the slope between two points. Substitute two points into the slope formula. Use (-3,-1) and (2,2) in the formula.

[tex]m = \frac{y_2-y_1}{x_2-x_1} =\frac{2--1}{2--3} =\frac{2+1}{-2+3} =3[/tex]

Since m = 3, substitute its value and the point (2,2) into the point slope form. Then simplify.

[tex]y-y_1 = m(x-x_1)\\y-2 = 3 (x-2)\\y-2=3x-6\\y=3x-4[/tex]


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