Question 979583
y-y1= (1/4) (x-x1)

y- (-4)= (1/4) (x-1)

y+4= (1/4)x-1/4
y=(1/4)x -41/4 (or 17/4)

x=1, y=(1/4)-(17/4)=-4

{{{graph(300,300,-10,10,-10,10,(x/4)-(17/4))}}}