Answer:
y= -5x + 7
Explanation:
y=-5x+4
compare with y=mx+c
m=-5, c=4
the line is parallel to the line y=-5x+4
.°. m=m1
m1= -5
since the point (1,2)is on the line
x1=1, y1=2
the equation of the line is
y-y1=m (x-x1)
y-2= -5 (x-1)
y-2= -5x +5
y= -5x +5 +2
y= -5x +7