Question 148344
The point (2, -5) is a solution to which of the following equations? 
{{{y = -3x + 1}}} 
{{{y = -3x - 5}}}
{{{y = -3x - 3}}} 
{{{y = -3x + 5}}}
<pre><font size = 4 color="indigo"><b>
We substitute x=2 and y=-5 in each one

{{{y = -3x + 1}}}
{{{-5=-3(2)+1}}}
{{{-5=-6+1}}}
{{{-5=-5}}} which is true

{{{y = -3x - 5}}}
{{{-5=-3(2)-5}}}
{{{-5=-6-5}}}
{{{-5=-11}}} which is false

{{{y = -3x - 3}}}
{{{-5=-3(2)-3}}}
{{{-5=-6-3}}}
{{{-5=-9}}} which is false

{{{y = -3x +5}}}
{{{-5=-3(2)+5}}}
{{{-5=-6+5}}}
{{{-5=-1}}} which is false.

So only the first one is true. So the
only answer is

{{{y = -3x + 1}}}

Edwin</pre>