Can anyone help please?

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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