Hello : let A(-4,5) B(-5,-4) the slope is : (YB - YA)/(XB -XA) (-4-5)/(-5+4) = -9/-1=9 an equation is : y=ax+b a is a slope
y = 9x +b
the line through point A(-4,5) : 5 = 9(-4)+bb =41 the equation is : y =9x+41
