Answer:
a
y=0x-2
b
y=1x+3
c
y=no solutions/undefined,
d
y=-1/2x-4
Step-by-step explanation:
change in y / change in x
if the line passes through the top left part AND the bottom left part, slope's positive. if it passes through both of the other ones slope is negative. if it's parralell to one of the axis, the answer is undefined or 0, the horizontal one being 0
right away we can see line b's slope is positive, and line d's slope is negative.
y=mx+b
b is the y intercept
m is slope
