Question 119985
5Y+2X=13
5Y=-2X+13
Y=-2X/5+13/5 THUS THIS LINE HAS A SLOPE OF -2/5. (RED LINE)
FOR THE PERPENDICULAR LINE THE SLOPE IS THE NEGATIVE RECIPRICAL OF THIS SLOPE OR 5/2.
USING THE POINT(6,2 & THE SLOPE OF 5/2 WE SOLVE THE LINE EQUATION FOR THE Y INTERCEPT(b)
2=5/2*6+b
2=30/2+b
b=2-15
b=-13 FOR THIS Y INTERCEPT.
y=5x/2-13 (GREEN LINE)
{{{ graph( 400, 400, -6, 15, -15, 15, y = -2x/5 +13, y = 5x/2 -13) }}} (graph 400x400 pixels, x from -6 to 15, y from -15 to 15, of TWO functions y = -2x/5 +13 and y = 5x/2 -13).