SOLUTION: Find the value of K so that the point P lies on the line L. P(2,1), L; 3x + ky = 8

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Question 210005This question is from textbook Algebra and Trigonometry
: Find the value of K so that the point P lies on the line L. P(2,1), L; 3x + ky = 8 This question is from textbook Algebra and Trigonometry

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
What's the value of k such that the given point P(2, 1) lies on the line given by:
3x+ky = 8 Substitute x = 2 and y = 1 and solve for k.
3(2)+k(1) = 8
6+k = 8
k = 2.
Check: 3x+2y = 8 Rewrite in slope-intercept form:
y = -(3/2)x+4 Substitute x = 2.
y = -(3/2)(2)+4
y = -3+4
y = 1 OK