tyl12 tyl12
  • 21-10-2020
  • Mathematics
contestada

A line goes through the point (6,-2) and has a slope of
-3
What is the value of a if the point (a, 7) lies on the line?
a
Dome

Respuesta :

surjithayer10 surjithayer10
  • 21-10-2020

Answer:

Step-by-step explanation:

eq. of line is y-(-2)=-3(x-6)

y+2=-3x+18

y=-3x+18-2

y=-3x+16

∵(a,7) lies on it.

7=-a+16

a=16-7=9

a=9

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