Subtract 2 from 9 times y

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?