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Closed.

shamil98 · Answer

find the slope of the two coordinates first.
y2-y1/x2 -x1
then input the values into y - y1 = m (x-x1)

anonymous · Answer

@KeithAfasCalcLover, Sorry to bug you. 
Would you mind explaining it?

anonymous · Answer

Yeah course no prob!

In general, a line passing through points $(x_1,y_1)\textit{ and }(x_2,y_2)$ has the slope, $m$:
$$m=\frac{y_2-y_1}{x_2-x_1}$$

anonymous · Answer

So in our case we have:
$$m=\frac{6-0}{2-4}=-\frac{6}{2}=-3$$
So then we can substitute the slope into the formula for a line:
$$y=mx+b\to y=-3x+b$$
And we can put in any of the two points in for x and y and solve for b; i'll choose $(4,0)$:
$$0=-3(4)+b\to0=-12+b\to b=12$$
So then we end up with the equation:
$$y=-3x+12=-3(x-4)$$

anonymous · Answer

Which is C haha

To prove it, put 4 into x and you should obtain 0; put 2 into x and you should obtain 6

anonymous · Answer

So, you pretty much plug-in after solving, and you're golden?

anonymous · Answer

YEAH!

anonymous · Answer

C