Answer:
2) No function
3) Function: y=30x
Domain: x≥0
Range: y≥0
4) Function: y=160
Domain: x≥20
Range: y=160
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Ok.....Since I can't graph it, we can make a table
x y
3 9
1 1
From 9 to 1, you subtract 8 (this is for the y section)
From 3 to 1, you subtract 2 (this is for the x section)
Now all you have to do is divide the y with the x
y/x = 8/2 = 4
And 4 will be your slope for these two points.
Hope this helped!
Just add them together
70+30+50=150
150-100=50
50 people had all three
