Question 68476
A y= 4/7x-3  B y= 3x-4/7  C y=-1/3x+4/7 D y= 1/3x-4/7

To determine which two equations are perpendicular, You can graph all the equation. If you have two nonvertical lines that are perpendicular, the slopes are the negative reciprocal of the orignal slope.


<br> B.) {{{y = 3x - 4/7}}}, m = 3
<br> C.) {{{y =(-1/3)x + 4/7}}}, m = -1/3
3 is the negative reciprocal of -1/3.
Therefore, Answer is B and C
<br> Look at the graph.
<br>{{{graph (200, 200, -8, 5, -8, 5, 3x-4/7, (-1/3)x+4/7)}}}

<br> Here's the graph of the rest of the two equations

{{{graph (200, 200, -8, 5, -8, 5, (4/7)x-3, (1/3)x-4/7)}}}

<br> The red line shows the graph y= 4/7x-3.
The green line shows y= 1/3x-4/7