x = 3 is a vertical line that goes straight up and down at 3 on the x axis, vertical lines have a undefined slope. Don't confuse that with no slope which is a flat like like y=7.
so the slope is undefined
Answer:
C}
Step-by-step explanation:
This is an linear equation, so
y=mx + b
m= money w=weeks
m= -20w +200
It will take Dave 7 weeks to earn the right amount of money.