K = -2 J + 24
Step-by-step explanation:
Trend line - Straight line on a graph which has data scattered on the graph, with at least two points intersecting the straight line.
The equation to be used for this trend line
y = mx + b
As per the graph given, y axis is represented as variable K and x axis is represented as variable J. So, the equation can also be represented as,
K = mJ + b
Let us take 2 points from the straight line.
(J1, K1) = (4,16)
(J2, K2) = (6, 12)
To, find the value of m, the equation is
m = K2 - K1 / J2 - J1
m = 12 - 16 / 6 - 4
m = - 4 / 2
m = -2
Now using the equation K = mJ + b, we can find the value of b
b = K - mJ
b = 16 - (-2)*4
b = 16 + 8
b = 24
Therefore, using the equation, K = mJ + b
K = __ J +__
K = -2 J + 24
