K is the constant of proportionality also the same as slope.
You can see the commonality in the equations
y = kx
y = mx + b
The difference is that is a direct proportion the line will always go through the origin so the b will be zero.
The answer is B.
<span>x^2+10x + 25 = (x + 5)^2
missing = 25
hope it helps</span>
67.943
= 60.000 + 7.000 + 0.900 + 0.040 + 0.003
I think the answer is: 6 = -21