the points (2,5),(3,3) and (k,1) all lie in a straight line.(a)find the value of k,(b)find the equation of the line About the author Mary
Answer: x1 = 2 x2 = 3 y1=5 y2 = 3 m = (y2 – y1)/(x2-x1) m = (3-5) / (3-2) m= -2/1 m = -2 Next find the value of c y = mx + c 5 = (-2*2)+c 5 = -4 + c C = 9 then when y=1 y = mx + c 1 = -2x + 9 -2x = -8 x = -8 / -2 x=4 So k =4 done! Hope this Helps! Step-by-step explanation: be safe Reply
Answer:
x1 = 2
x2 = 3
y1=5
y2 = 3
m = (y2 – y1)/(x2-x1)
m = (3-5) / (3-2)
m= -2/1
m = -2
Next find the value of c
y = mx + c
5 = (-2*2)+c
5 = -4 + c
C = 9
then when y=1
y = mx + c
1 = -2x + 9
-2x = -8
x = -8 / -2
x=4
So k =4
done!
Hope this Helps!
Step-by-step explanation:
be safe