Respuesta :
you simply substitute the coordinates into the given equation
so
-7 = 3k + 2
then solve from there
-9 = 3k
-3 = k
so
-7 = 3k + 2
then solve from there
-9 = 3k
-3 = k
Answer:
k=-3
Step-by-step explanation:
The given equation of line is
[tex]y=kx+2[/tex]
We need to find the value of k if the above line passes through the point C(3,-7).
If a line passes through a point, then the equation of line must be satisfy by that point.
Substitute x=3 and y=-7 in the given equation.
[tex]-7=k(3)+2[/tex]
Add 2 on both sides.
[tex]-7-2=3k+2-2[/tex]
[tex]-9=3k[/tex]
Divide both sides by 3.
[tex]-3=k[/tex]
Therefore, the value of k is -3.