Question 97147
Y=mX+b WHERE (m)=SLOPE & (b)= Y INTERCEPT
SLOPE=(6-10)/(2+4)=-4/6=-2/3
NOW SUBSTITUTE ONE SET OF X,Y VALUES & SOLVE FOR (b)
10=-2/3*-4+b
10=8/3+b
b=10-8/3
b=(30-8)/3
b=22/3
Y=-2X/3+22/3 IS THE LINE FORMULA THROUGH THESE TWO POINTS.
{{{ graph( 300, 200, -6, 15, -10, 10, y = -2x/3 +22/3) }}} (graph 300x200 pixels, x from -6 to 15, y from -10 to 10, y = -2x/3 +22/3).