We know that
slope m=(y2-y1)/(x2-x1)
then
case a) x=18
m=(y2-y1)/(18-18)--------------> is undefined, because <span>the denominator is zero
case b) </span><span>2y-6x=0
2y=6x------------> y=3x
the slope m=3-----------> m is defined
case c) y=9
</span>m=(9-9)/(x2-x1)--------> m=0-----------> m is defined
case d) y=x
m=1---------------> m is defined
the answer is
x=18 has an undefined slope
Answer:
8
Step-by-step explanation:
Answer: Marcela saves $15 and spends $45.
Step-by-step explanation: 25% is one set of the 4 sets of $5 on the model. If you remove that one set you remove $15 and have $45 left.
Answer: c
Step-by-step explanation: a parrelagram has each side parrel
Answer:
the answer is 90
Step-by-step explanation: