nicholas260 nicholas260
  • 06-12-2018
  • Mathematics
contestada

which equation in point -slope form contains the points (8,10) and (-4,2)

Respuesta :

jimrgrant1 jimrgrant1
  • 06-12-2018

Answer:

see explanation

Step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (8, 10) and (x₂, y₂ ) = (- 4, 2)

m = [tex]\frac{2-10}{-4-8}[/tex] = [tex]\frac{-8}{-12}[/tex] = [tex]\frac{2}{3}[/tex]

Using either of the 2 points as point on the line

using (8, 10 ), then

y - 10 = [tex]\frac{2}{3}[/tex](x - 8) ← in point- slope form


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