SOLUTION: If the point (-4, k) is on the graph of the equation 3x + y = -8, find the value of k.

Algebra ->  Points-lines-and-rays -> SOLUTION: If the point (-4, k) is on the graph of the equation 3x + y = -8, find the value of k.      Log On


   



Question 253250: If the point (-4, k) is on the graph of the equation 3x + y = -8, find the value of k.
Answer by JimboP1977(311) About Me  (Show Source):
You can put this solution on YOUR website!
3x+%2B+y+=+-8
y+=+-3x-8 Rearrange to the form y=mx%2Bc
-4,k -4 is the x value. So we put the x value into y+=+-3x-8 to give the y value. y=%28-3%2A-4%29-8
y=%2812%29-8
y=4
so k = 4