Question 1203163:  The straight line y=mx+c passes through the points (0, k) and (h,2k)
 
Express m and c in terms of h and k
 
What I have tried
 
    A.         B. 
......................... 
    (0,k)     (h, 2k) 
    (X1,Y1).   (X2, Y2) 
M= (Y2-Y1)/(X2-X1) 
M= k/h 
Y-Y1=m(X-X1) 
==== 
Y=kx/h +K 
C=K 
 Found 3 solutions by  Alan3354, josgarithmetic, MathLover1: Answer by Alan3354(69443)      (Show Source): 
You can  put this solution on YOUR website! The straight line y=mx+c passes through the points (0, k) and (h,2k)
 
Express m and c in terms of h and k
 
What I have tried
 
    A.         B. 
......................... 
    (0,k)     (h, 2k) 
    (X1,Y1).   (X2, Y2) 
M= (Y2-Y1)/(X2-X1) 
M= k/h 
Y-Y1=m(X-X1) 
==== 
Y=kx/h +K 
C=K 
=============================== 
Slope m = (2k-k)/(h-0) = k/h 
--------------- 
(0,k) is the y-intercept, so c = k 
 Answer by josgarithmetic(39630)      (Show Source): 
You can  put this solution on YOUR website! The two points  (0,k) and (h, 2k);
 
 
Directly to formula of slope, 
 
 
 
 
 
 
 
 
Also using slope intercept form,   and now having an expression found for slope m, 
picking your first given point  (0,k),
 
 , which you could have jumpted through much more quickly; 
  
 
 
 
 
Understand, first given point (0,k) indicates that vertical axis intercept is k. 
You would not really need to SOLVE for c. 
 Answer by MathLover1(20850)      (Show Source): 
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